Blur Busters Forums

Hello BlurBuster Community,

I have few concerns about ULMB, but let me first tell you why I even switched to it. I have an Alienware Monitor with G-Sync and 240 Hz. I do not want to use G-Sync, because I can easily pull 240+ FPS with my set up, so I want to eliminate the input lag rather.

Switching Monitor Technology to Fixed Refresh automatically set max FPS to 240, which is my monitor refresh rate. This behavior is not described anywhere and I thought something was wrong with my System, because I could not pull more than 240 FPS. However, then I decided to try the 3rd option which is ULMB and finally I was hitting 300+ FPS.

Now my questions are:
1.) Does ULMB cause any input lag? If so, how can I address it?
2.) What are then my remaining options, since I do not want to use G-SYNC as it adds Input Lag and also Fixed Refresh automatically caps my FPS to MAX REFRESH RATE. What are my options to get 0 input lag while having 240+ FPS?

My setup:
i9 9900K
RTX 2080

Thanks.

NIghtcorey wrote: ↑

17 Sep 2020, 09:03

Switching Monitor Technology to Fixed Refresh automatically set max FPS to 240, which is my monitor refresh rate.

That's probably because you're using VSYNC ON. Switch to VSYNC OFF and you'll become uncapped. If you're capped despite VSYNC OFF, try disabling all caps (VSYNC setting in game, cap setting in NVIDIA Control Panel, cap setting in RTSS, cap setting in-game), because changing Monitor Technology also likely simultaneously changes some cap-related settings.

If you're still capped, then you're getting bugged behavior. Uninstall your drivers and reinstall with a clean settings reset, perhaps. And remember to use VSYNC OFF if you want framerates beyond refreshrates at the lowest lag.

NIghtcorey wrote: ↑

17 Sep 2020, 09:03

Now my questions are:
1.) Does ULMB cause any input lag? If so, how can I address it?

ULMB adds input lag but can human improve human reaction time that compensates for input lag. Adding 5ms of input lag is worth it if your human reaction time improves by 10ms because things are less blurry. But only for specific games. ULMB is not as good for CS:GO as it is for certain other games that benefits far more from ULMB, see HOWTO: Using ULMB Beautifully or Competitively.

It is your decision whether or not to use ULMB. Most CS:GO players do not use ULMB though.

Currently, refresh rate increases and frame rate increases are our vastly preferred method of blur busting nowadays (Blur Busters Law: Amazing Journey To Future 1000 Hz Displays) but ULMB is a fantastic alternative when used correctly (Right Tool For The Right Job)

NIghtcorey wrote: ↑

17 Sep 2020, 09:03

2.) What are then my remaining options, since I do not want to use G-SYNC as it adds Input Lag

Again, G-SYNC is a Right Tool For the Right Job. G-SYNC can help aiming in certain games, but it won't help CS:GO. Ideally, you need a refresh rate range wider than the framerate range, and very fast scanout velocity.

Relatively speaking, properly configured G-SYNC has less lag than ULMB, but it depends on what you need ULMB or G-SYNC for. Many use VSYNC OFF for CS:GO but turning on G-SYNC for PUBG because of the way it stutters much more (and G-SYNC helps it more), because of the way the games behave/co-operate with different sync technologies. CS:GO likes to run really high framerates, which is where G-SYNC has less benefit for (Although 360Hz monitors now means you can "have your G-SYNC cake and eat it too" without the penalty of capping below common CS:GO framerates)

I currently assume you're playing only CS:GO on a sub-300Hz monitor. For that, I recommend VSYNC OFF especially if you're playing professionally/esports in that particular game.

Chief Blur Buster wrote: ↑

17 Sep 2020, 13:24

Thanks for the answer.

I am playing Valorant.

My gear is:
i9 9900K
RTX 2080

I have 240 Hz Alienware monitors.

Thing is I want to get most out of my gear, by reducing input lag.

Unfortunately, I do not know why Fixed Refresh caps my FPS to 240. I did all the checks, will soon post a screenshot of my settings.

I uninstalled NVIDIA Drivers with DDU software that should completely remove everything. Installed this latest one again, but still 240 FPS cap on Monitor Technology: Fixed Refresh.

I do not use any other Software to limit my FPS, just in-game and NVCP. Both of there have UNCAPPED.

V-Sync is OFF in-game and also in NVCP for this game.

I figured the issue with Fixed Refresh. I had to completely disable G-Sync on monitors in order to be able to use Fixed Refresh with 240+ FPS.

Yes, disabling G-SYNC makes it easier to use pure VSYNC OFF.

You must have a "G-SYNC Compatible"

G-SYNC compatible monitors (FreeSync) often have an in-monitor setting to enable/disable it.
G-SYNC native monitors normally don't have a setting, setting is controlled by NVIDIA drivers.