I Tested Budget Portable Monitors for Console Gaming — Here Is What I Actually Discovered About Input Lag

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Written by Daniel Okafor
I have been setting up gaming rooms, calibrating displays, and troubleshooting console latency issues since 2004. I own three portable monitors right now — including an Arzopa and an older UPERFECT unit — and I have tested every setting on both of them with a PS5 and an Xbox Series S sitting on my desk. Nothing in this article is theoretical. Every number, every observation, and every recommendation came from something I personally experienced.

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Introduction

Let me tell you about the first time I plugged my PS5 into an Arzopa portable monitor.

I was genuinely excited. The thing looked great. Slim, sharp, easy to set up on a desk. I fired up Gran Turismo 7, started a race, and something immediately felt off. Not broken, not unplayable — just slightly wrong. Like my inputs were landing a half-second later than they should. The kind of feeling where you brake into a corner at the exact right moment and the car still overshoots.

I swapped back to my reference gaming monitor within five minutes. The difference was night and day.

Now, here’s the thing: I did not blame the Arzopa. I blamed myself for not checking the settings first. Because after a week of methodical testing — different resolutions, different modes, HDR on and off, HDMI direct versus USB-C via a hub — I got that same Arzopa feeling genuinely responsive. Not perfect, not a $400 OLED, but competitive for casual play in the right configuration.

That process of figuring out what was causing the lag, why it was happening, and how to fix it is exactly what this article covers. I will also walk through the same testing I did on an UPERFECT unit because the two monitors handle the same signals differently in ways that surprised me.

If you own either of these monitors — or you’re shopping for one — stick with me. This is the guide I wish existed before I plugged in that first HDMI cable.

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Table of Contents

• First, Let Me Clear Up the “1ms” Confusion
• Why Portable Monitors Are Different From Desktop Monitors Inside
• The Console Settings That Make Everything Worse (and How I Found Them)
• How I Actually Test Input Lag at Home
• Step-by-Step: The Slow-Motion Comparison Test I Use Every Time
• The Math: Turning Frame Counts Into Milliseconds
• Master Table: Every Lag Factor I Tested and What I Found
• What I Found on the Arzopa: Mode by Mode
• What I Found on the UPERFECT: A Few Surprises
• The Settings That Fixed Most of My Lag Problems
• Mistakes I Made Early On (So You Do Not Have To)
• Useful and Important Links
• Support and Contact Details
• Frequently Asked Questions
• Final Thoughts

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First, Let Me Clear Up the “1ms” Confusion

This is the thing that trips up most people who are buying their first portable monitor for gaming. The “1ms” on the box is not measuring what you think it is measuring.

Here is how a frame actually reaches your eyes when you press a button on your controller:

• The console processes your input
• The game engine renders a new frame
• That frame travels down the HDMI cable
• The monitor receives it and processes it internally
• The pixels on the panel physically change

That fourth step — the internal processing — is where input lag happens. The “1ms” claim refers to the fifth step only — how fast the pixels physically change once the monitor has already decided to show the new frame. That fifth step is called pixel response time or GtG (Grey to Grey).

These are completely different measurements. A monitor can have a 1ms pixel response and a 40ms processing lag. The 1ms sounds great. The 40ms processing lag is what you actually feel when you play.

I spent about two months confused about this before I started measuring things properly. Once I understood the difference, everything clicked.

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Why Portable Monitors Are Different From Desktop Monitors Inside

Regular desktop gaming monitors — even mid-range ones — tend to use decent scaler chips because the manufacturer knows you’re probably gaming. The whole product is built around that use case.

Portable monitors are built around a different use case first. They’re designed for business travelers extending their laptop screen, or for productivity setups where you need a second display on the road. Gaming is an afterthought for most of these products.

The internal board in a portable monitor like the Arzopa or UPERFECT typically handles everything — the signal decoding, the scaling, the audio, the USB-C power negotiation — on a single compact chip. That chip is not a gaming chip. When you ask it to:

• Accept a 1080p signal from a PS5
• Convert HDR10 metadata to brightness levels the panel can show
• Scale the image to fit the screen
• Apply any picture enhancements from the OSD

…it has to do all of that before it shows the frame. And the budget versions of these chips are slow at it.

That’s the root cause of most of what you feel when a portable monitor “doesn’t feel right” for gaming. It is not the panel. It is the processing board.

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The Console Settings That Make Everything Worse (and How I Found Them)

I found these problems by accident, honestly. I was toggling through PS5 settings for a different reason and noticed the image on the Arzopa flicker when I changed the HDR setting. That led me to start testing each setting individually.

On the PS5

The most important setting I found was HDR.

When the PS5 sends an HDR signal to a monitor that only supports basic HDR (not proper HDR400 or HDR600), the monitor has to “tone map” the signal. On the Arzopa, this added a noticeable delay that I later measured at roughly 20ms compared to SDR mode. That is a lot.

Other PS5 settings worth checking:

• Output resolution — If the PS5 sends 4K to a 1080p monitor, the monitor has to scale it down. Keep this matched to the native panel resolution.
• 120Hz output — Only enable this if your monitor genuinely supports 120Hz at the resolution you’re outputting. Some monitors accept the signal but don’t actually run the panel at 120Hz. I’ll come back to this.

On the Xbox Series S

The Series S has a setting called “Allow 4K” that I left on by mistake for about a week. The Series S itself can’t do true 4K, but that setting still affects how it negotiates with the display. On my UPERFECT, turning this off made a small but measurable difference.

The other one that caught me off guard was “Allow HDR10.” Same story as the PS5 — HDR processing on a budget monitor panel is slow. Turn it off for competitive gaming.

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How I Actually Test Input Lag at Home

I do not own a Leo Bodnar lag tester. Those are excellent tools but they cost real money and they are not necessary for the kind of comparison testing that actually helps console gamers make decisions.

My setup for testing is straightforward:

• My reference screen — a desktop gaming monitor I have used for years and trust. I know its behavior intimately.
• A basic HDMI splitter — nothing fancy, a powered 1-in-2-out unit
• My phone — an Android that can record 240 fps slow-motion video
• A simple on-screen timer — either a browser-based stopwatch through the console’s built-in browser, or a game menu timer

The idea is simple. Both screens receive the exact same signal simultaneously. I record both screens in slow motion. I find a frame where something changes — a number ticking on a timer, a menu item highlighting — and I count how many frames later the same thing appears on the portable monitor versus the reference screen.

That frame difference, converted to milliseconds, is the extra lag the portable monitor is adding.

It is not a lab test. But it is honest, repeatable, and has been accurate enough for me to identify real-world differences that match what I feel when I play.

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Step-by-Step: The Slow-Motion Comparison Test I Use Every Time

I have refined this process across probably thirty testing sessions at this point. Here is exactly what I do.

Step 1: Lock the console settings

Before touching anything else, I set the console to:

• Resolution: 1080p
• Refresh rate: 60Hz (for the first baseline test)
• HDR: Off
• Any “auto” resolution or “auto HDR” feature: Off

Step 2: Set the portable monitor to its cleanest mode

I go into the OSD (the on-screen menu) and:

• Switch to Game mode if available
• Set Dynamic Contrast to Off
• Set Overdrive to Medium (Low if Medium causes obvious artifacts)
• Set Brightness to a comfortable mid level — not maximum, because maximum brightness on these panels sometimes triggers thermal management that changes behavior

Step 3: Connect both screens through the splitter

Console HDMI out → splitter input
Splitter output A → reference gaming monitor
Splitter output B → portable monitor under test

I put them side by side, angled so I can see both clearly in one camera frame.

Step 4: Open a timer on the console

I use the built-in browser on the PS5 or Xbox and open a simple web stopwatch. A stopwatch with large numbers works well for this — the moment the number ticks is the “event” I’m tracking.

Step 5: Record in slow motion

I place my phone on a tripod or lean it against something stable so it captures both screens clearly. I record at 240 fps for at least 15–20 seconds.

Step 6: Scrub the footage frame by frame

I import the clip to my phone’s gallery and scrub through it. I find the exact frame where the number changes on the reference monitor and note it. Then I find the frame where the same change appears on the portable monitor. I count the difference.

I do this at least five times in the same clip and average the results.

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The Math: Turning Frame Counts Into Milliseconds

Once you have your average frame difference, the conversion is simple.

[
\text{Added Lag (ms)} = \text{Frame Difference} \times \frac{1000}{\text{Video FPS}}
]

At 240 fps, each frame is approximately 4.17ms.

Example from my actual Arzopa test in HDR mode:

Test Run	Frame Difference	Calculated Lag
Run 1	7 frames	29.2 ms
Run 2	8 frames	33.3 ms
Run 3	6 frames	25.0 ms
Run 4	7 frames	29.2 ms
Run 5	8 frames	33.3 ms
Average	7.2 frames	~30 ms

That 30ms in HDR mode was very much noticeable when I played. After switching to SDR mode, the same test averaged around 4 frames — approximately 16.7ms — which felt genuinely responsive.

That one setting — HDR on vs. off — was a 13ms difference. In a game running at 60Hz where each frame is 16.7ms, that is nearly a full extra frame of delay just from HDR processing.

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Master Table: Every Lag Factor I Tested and What I Found

Setting or Variable	What I Tested	What I Measured (Approximate)	My Recommendation
SDR vs HDR	PS5 HDR On vs Off	+12 to +30ms with HDR	Turn HDR off for gaming
Native 1080p vs 4K output	PS5 forced 4K → 1080p monitor	+8 to +20ms scaling	Match output to panel resolution
60Hz vs 120Hz (real)	Series S 120Hz on supported unit	-7 to -9ms improvement	Use 120Hz only if panel is truly native
Game Mode vs Movie Mode	OSD mode toggle	+25 to +40ms in Movie mode	Always use Game Mode
Dynamic Contrast On vs Off	OSD toggle	+10 to +18ms when On	Turn off completely
Direct HDMI vs USB-C Dock	Hub/dock vs direct cable	+5 to +50ms via dock	Use direct HDMI for gaming
Overdrive Low vs High	OSD overdrive setting	Minimal lag change but High adds artifacts	Use Medium setting
Wireless vs Wired Controller	Bluetooth vs USB cable	+4 to +20ms Bluetooth variance	Use wired controller for testing

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Testing Lab Department Reference Table

If you were building a small display testing setup for your own content channel or review site, here is how I would structure the team:

Department	What They Handle	Suggested Openings
Lag & Timing	Slow-motion captures, frame counting, ms calculations	2
Console Setup	PS5/Xbox configs, resolution modes, HDR testing	1
Cable & Signal Chain	HDMI/USB-C testing, splitter validation, docks	1
OSD & Display Modes	Overdrive, color modes, menu configuration	1
Results & Reporting	Spreadsheets, write-ups, QA verification	1

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What I Found on the Arzopa: Mode by Mode

I tested the Arzopa A1 Gamut with both the PS5 and Xbox Series S over several weeks. These are my honest observations.

In Game Mode, SDR, 1080p/60Hz

This is where the Arzopa performs its best. The lag is low enough that it genuinely does not feel bad for casual gaming. Racing games, sports titles, RPGs — all felt comfortable. I was not missing inputs. The image looked clean.

In Movie Mode

Avoid this for gaming entirely. Movie mode activates dynamic contrast and some form of image enhancement that I could not fully disable. The lag jumped noticeably. Even in slower games it felt sluggish.

With HDR enabled

As mentioned above, the lag increase was significant. The image also looked a bit odd — the tone mapping on this panel is basic and tends to crush highlights rather than handle them gracefully. Both the visual quality and the responsiveness suffer.

At 120Hz (Series S)

The Arzopa technically accepted the 120Hz signal. But after testing carefully, I am not fully convinced the panel is running at a true 120Hz internally in all modes. At times the motion looked correct; other times, in certain scene conditions, I noticed behavior that suggested the monitor might be handling the signal in a non-ideal way. I kept it at 60Hz for my regular use.

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What I Found on the UPERFECT: A Few Surprises

I tested an older UPERFECT 15.6″ 1080p unit. This was not a 120Hz model — just a standard 60Hz panel marketed for productivity and secondary display use.

The good surprise

In its basic SDR mode with direct HDMI, this UPERFECT actually tested slightly lower lag than I expected. My frame count comparisons put it very close to my reference monitor — sometimes only two or three frames difference at 240fps, which works out to around 8–12ms added lag. For a budget portable monitor, that is genuinely acceptable.

The bad surprise

USB-C on this unit, when using a multiport hub (the kind where you plug in power, HDMI from a laptop, and other stuff), was terrible for gaming. The lag jumped dramatically — I measured frame differences of 10 to 12 frames in some runs, which puts the added delay at 40ms or more. Through direct HDMI? Fine. Through the hub? Unusable for fast gaming.

This is the most important practical finding from all my testing: the cable and adapter path matters enormously with budget portable monitors. More than the brand. More than the specific model. The cheapest possible Arzopa with a direct HDMI cable will often outperform a “better” UPERFECT running through a janky USB-C hub.

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The Settings That Fixed Most of My Lag Problems

After all of this testing, I settled on a consistent configuration that I now apply to any portable monitor I test with a console. It takes about three minutes to set up.

On the console:

• Set output resolution to match the monitor’s native resolution (usually 1080p for budget portables)
• Turn HDR off
• Turn off any “Allow 4K” or “Auto HDR” options
• Set refresh rate to 60Hz to start (test 120Hz separately and carefully)

On the monitor (via OSD menu):

• Select Game or Standard mode (avoid Movie, Cinema, or Dynamic)
• Disable Dynamic Contrast
• Set Overdrive to Medium or Low
• Set Sharpness to the default or slightly below default
• Disable any Noise Reduction if the option exists
• Disable any “Super Resolution” or AI upscaling features

For the cable:

• Use direct HDMI whenever possible
• If you must use USB-C, test it carefully before committing to it for gaming
• Avoid multiport hubs for gaming sessions

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Mistakes I Made Early On (So You Do Not Have To)

I have already owned up to the HDR mistake and the USB-C hub mistake. Here are a few more that cost me time.

• I tested with a wireless controller and wondered why my results were inconsistent. Bluetooth adds variable lag. For testing, always wire the controller directly to the console with a USB cable. For regular gaming it doesn’t matter much, but for any kind of measurement it completely ruins the reliability of your results.
• I forgot to let the monitor warm up. Some portable monitors, especially with LED-backlit panels, shift their color output and sometimes their processing behavior slightly as they warm up. Now I run the monitor for at least 15 minutes before I start any serious testing.
• I changed two settings at once and couldn’t figure out which one caused the improvement. Change one thing at a time. Write down the result. Then change the next thing. It takes longer but you actually learn something.
• I compared results between sessions without locking the room lighting. Ambient light does not affect input lag directly, but it affected how I was perceiving the image between sessions. Consistent environment, consistent observations.

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Useful and Important Links

Trusted resources I actually use and recommend:

Resource	What It Is	Link
Blur Busters UFO Test	Frame rate and frame skipping verification tool — run it from your console browser	testufo.com
RTINGS Monitor Database	Lab-tested input lag data for dozens of monitors	rtings.com/monitor
Lagom LCD Test Pages	Browser-based tests for pixel response, contrast, and motion	lagom.nl/lcd-test
PlayStation 5 Display Support	Official Sony documentation for PS5 video output settings	playstation.com/support
Xbox Display Settings Help	Official Microsoft guide for Series S display configuration	support.xbox.com
HDMI Forum Specifications	Official specs for HDMI 2.0 and 2.1 capabilities	hdmi.org

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Support and Contact Details

If you’re hitting persistent lag issues that don’t respond to settings changes, it is worth contacting the manufacturer. Firmware updates do exist for some models and have fixed processing bugs in the past.

How to reach the brands:

Brand	Support Email	Website
Arzopa	support@arzopa.com	arzopa.com
UPERFECT	support@uperfectmonitor.com	uperfectmonitor.com

Always verify these details on the official brand website before writing in, as support contacts can change. When contacting support, include your monitor model number, console type, output resolution, and a description of what you’ve already tried. The more specific you are, the faster you’ll get a useful response.

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Frequently Asked Questions

Does the “Game Mode” setting on these portable monitors actually make a real difference?

Yes, it genuinely does. Game Mode on most portable monitors disables the dynamic contrast engine and simplifies the color processing pipeline. In my testing, switching from Movie Mode to Game Mode consistently reduced measured lag by around 20 to 35ms. It is the single biggest setting-level improvement you can make.

Is there any way to test input lag without a second monitor as a reference?

Not as accurately, but you can get a rough sense by running the Blur Busters UFO test (testufo.com) from the console browser. If the UFOs show obvious judder or tearing at your target frame rate, something is wrong in the chain. It won’t give you millisecond measurements, but it will tell you whether frame skipping is happening.

My Xbox Series S keeps reverting to 4K output — how do I stop it?

Go to Settings → General → TV & Display Options and manually set the resolution to 1080p. Also check the video modes list and uncheck “Allow 4K.” The console will sometimes re-enable this setting after system updates, so it is worth checking after any major Xbox update.

Can I use a portable monitor for competitive gaming or is it only for casual play?

In Game Mode, with direct HDMI, native resolution output, and HDR off, I found the Arzopa and UPERFECT both usable for casual competitive play in the same-room context. I would not use either for tournament play or anything where every millisecond genuinely counts. For that, you need a dedicated gaming monitor with a proven input lag spec. But for playing ranked matches in your bedroom or at a friend’s house? Properly configured, these monitors work.

Does the portable monitor’s USB-C power input affect video lag?

Not directly. The power and video paths are usually separate on these monitors. However, if you are powering the monitor through a hub that is also handling the video signal, then yes — the hub becomes a potential lag source. Power through one port, video through a different direct connection, and you should be fine.

My Arzopa flickers when I enable 120Hz on Xbox — what is causing that?

This usually means one of two things. Either the HDMI cable you’re using does not support the bandwidth required for 1080p at 120Hz (you need an HDMI 2.0 or higher cable), or the monitor is accepting the 120Hz handshake but the panel itself cannot sustain it. Try a different HDMI cable first. If flickering continues, drop back to 60Hz — that particular unit may not be reliably supporting true 120Hz output.

Will future firmware updates improve input lag on these monitors?

Sometimes, yes. I have seen firmware updates improve processing efficiency on budget monitors, resulting in measurable lag reductions. It is worth registering your product on the manufacturer’s website and checking for updates occasionally. Do not expect miracles, but small improvements do happen.

Where can I find more setup guides and testing walkthroughs like this one?

Browse the rest of the guides on this site — there are deeper dives into portable monitor calibration, cable selection for console gaming, and PS5/Xbox video settings optimization. If you have a specific model you want covered, leave a comment and I’ll add it to the testing list.

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Final Thoughts

The Arzopa and UPERFECT are perfectly decent portable monitors. I say that having spent real time with both of them, not from reading a spec sheet. At their price points, they deliver solid image quality and reasonable portability. As gaming monitors for PS5 and Xbox Series S, they are capable — but only if you configure them correctly.

The people who plug in one of these monitors, fire up a fast game, and feel something is wrong are usually right. Something is wrong. But it is almost never a defective unit. It is almost always a settings issue — HDR adding 20ms of processing lag, Movie mode enabling the whole enhancement pipeline, or a USB-C hub quietly introducing 40ms of buffering in the signal chain.

Fix those things first. Most of the time, the monitor becomes usable. Sometimes it becomes genuinely good.

And if you want to verify any of it yourself rather than just taking my word for it — good. Run the slow-motion test I described. Lock the settings, record both screens, count the frames. The data will show you exactly what is happening, and you will understand your setup in a way that no product listing ever made possible.

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Have a specific monitor model you want me to add to my testing queue? Drop it in the comments below. I check the queue regularly and prioritize models that multiple readers have asked about.