Terrible input lag and screen tearing

[Reliktas]

How do you fix this? it ruins the experience.

[Sheogorath]

FSR3.1 and some other upscaling methods causing this. Try disable it and play with lower fps. Its a mess.

[Reliktas]

yeah i open pda in a game, suddenly input lag reduced wtf?

[Flachdrache]

all i can say is running Win11 64bit, intel core 7 .. RTX 3070(!) on ultra widescreen - i trusted NV's default settings (566.36) for stalker 2 but changed DLSS from quality to balanced .. no upscaling otherwise .. realtime reflection do cost me the most in Rostok - Pripyat and otherwise runs just fine ...

[Nite69]

You can fix the input lag by setting Nvidia Reflex to Ultra for Nvidia cards or AMD anti Lag on amd cards (players really need to stop blaming framegen for this seriously this option is all you need to stop the input lag)

screen tearing means your framerate is higher then your monitor supports you can fix that by limiting the framerate to lower then the refresh rate of the monitor

[mookymook]

it does ruin the experience, along with myriad other issues.

[Reliktas]

Originally posted by Nite69:

You can fix the input lag by setting Nvidia Reflex to Ultra for Nvidia cards or AMD anti Lag on amd cards (players really need to stop blaming framegen for this seriously this option is all you need to stop the input lag)

screen tearing means your framerate is higher then your monitor supports you can fix that by limiting the framerate to lower then the refresh rate of the monitor

My monitor refresh rate 120hz , my fps around 100 fps with g sync enabled still terrible tearing, i think g sync not working in this game or broken ue5

[z1]

I had input lag big time (and performance issues in general) when I first had the game for a couple days. Go to aim at something and your weapon swings way passed the target. Looked great, but that lagggg. In game settings didn't seem to do much. After some changes in the Nvidia Control Panel and a couple in game it was gone. Not saying these are fixes, but it went away after these changes for me. Also, this is with DLSS (quality) and FSR.

I changed

Nvidia Control Panel

-Anisotropic Filtering 16X (probably didn't do anything, but I set it anyway)
-Power Management Mode to Adaptive
-Shader Cache Size to 10gb (higher/lower/default was less stable for me)
-Texture Filtering Negative LOD Bias to Clamp (because I forced 16x filtering above)
-Triple Buffering to On (because I planned to use Vsync in game to stop tearing)
-Low Latency Mode to Ultra (seems to be most important change for latency, although I actually set this later, after I had already fixed my input lag with the other settings. So for me, this was just something I set later that didn't seem to net me any results. It didn't have any negative effects though, so I just keep it on.)

In the game I made sure

-Nvidia Reflex is ON
-Vsync ON
-Capped at 60fps (I have a 60hz monitor still :D)

I also have CUDA Sysmem Fallback Policy set to Prefer No Sysmem Fallback, but that setting was just to combat the "memory leak" and crashes. (still happens occasionally, but a lot better since 1.1.4)

Plays great except for some performance issues in Rostok, but no input lag. Good luck!

[z1]

No doubt, but it's not something I've never had to do in my gaming career.

[z1]

I'm probably not even considered "last gen" anymore though. I definitely don't understand the people having issues with the newest tech. So the frustration is understandable.

My mediocre rig
i7 8700 3.2ghz
2070 Super 8gb
32gb ram
SSD (sata)
2560x1080 60hz

Probably why I'm just happy to be able to play around 60fps with no input lag. Most my graphics settings are ultra/high except for the ones most people recommend on low. I probably drop a little in huge firefights, but not really noticeable. I haven't hit Pripyat though, so I might change my tone then

[z1]

I should add I don't have Nvidia App or Geforce Experience on my computer, and all overlays are turned off. Just the drivers necessary to game.

[Vanlock - Bottle Angel]

Finally installed the game after the latest patch.
Highly enjoying the game, it's a true Gem !

I play in exclusive fuilscreen on a 4K 120Hz TV and it feels like the game is running at 4K@60 as I notice screen tearing when the game runs (rarely) above 60fps...

Is there any ini setting or launch paramater to force 120hz refresh rate ?

it's very rare these days that a recent game will not use the screen's highest refresh rate or just use the default desktop refresh rate.

[☻]

In the Nvidia graphics control panel, enable low latency mode on ultra. Also set a frame rate cap just below your monitor's refresh rate. On a 120hz monitor you would set the frame rate cap to 118FPS. Force Vertical sync to the on position in the Nvidia control panel. Also check nexus mods for optimization mods like this one. https://www.nexusmods.com/stalker2heartofchornobyl/mods/7?tab=description

Also if you generally get 100FPS but it drops to 80FPS at times and causes stutters then try capping the frame rate at 80FPS for a smoother experience. The first major town in the game will run like crap on the highest end hardware because of CPU limitations but other than that the game runs great at 4k 120FPS HDR for me. I'm using DLSS Quality mode with frame generation with everything on epic and shadows, reflections, LOD and eye adaptation pumped up beyond what the base game allows and it runs great.

One other thing. If you download the latest version of DLSS and drop it into Stalker 2/\Engine\Plugins\Marketplace\DLSS\Binaries\ThirdParty\Win64

It will make the game look much more clear and have better AA abilities and slightly higher performance. You can download the latest version of DLSS here.
https://www.techpowerup.com/download/nvidia-dlss-3-frame-generation-dll/

[Vanlock - Bottle Angel]

Thanks for your reply.
Yeah in the Nvidia App i already have a frame cap below 120 and low latency is enabled.

But the game mostly runs around 50fps so the issue is that I can see tearing the few times that game goes above 60.... That's why i'm pretty sure the game is actually running at fullscreen 60hz for no reason...

I've already installed the mentionned mod and earlier I posted a comment to the modder to inquire on my issue.

Also yeah I have used the recommended DLSS Swapper to update Stalker2 to the latest version of DLSS 4.

[☻]

Force vertical sync. Sometimes reflex doesn't work correctly with TV's so vertical sync needs to be forced on in the control panel. It will fix your problem.