Finally fixed my stuttering in ACC!

[MapoUK]

After never having ACC run without stuttering, and returning after buying the GT4 pack I was determined to try and resolve the issue. I was running at 80 to 120 fps in 4k but was still plagued with the dreaded microstutters.

Most of you may already know this, but for those who it may help.

To resolve the issue (for me anyway) if you locate the file ac2-win64-shipping.exe (which in located in your ACC game folder SteamLibrary\steamapps\common\Assetto Corsa Competizione\AC2\Binaries\Win64) - right click on it, select properties, select the compatibility tab and click on Disable Full Screen Optimisations. In game set the frame limiter to your screen refresh rate and turn on V-Sync. Windows Game Bar Mode also needs to be disabled for this to work.

I also used the same same option on the acc.exe file (which in located in your ACC game folder SteamLibrary\steamapps\common\Assetto Corsa Competizione\AC2) just in case.

It's cured my microstutters and I've been able to put most settings back to epic on 4k and retain solid 60fps with no stutters

Kudos and my eternal thanks to PhilS13 at the AC Forums who posted this solution over a year ago, just wish I'd found it sooner.

 

[stingray_SIX_TWO]

I found this thread after a long search into possible causes and read (and tried) everything. Initially ACC ran perfectly fine even in 4K but after playing around with the Nvidia Settings it started to slightly stutter. I then went from Studio to Game Drivers and it became very noticeable.

All the framerate limitation, process prioritization, second screen, vsync, page file, windows game bar, fullscreen optimization all did absolutely nothing unfortunately.

Ultimately I left ACC as is with my 'original' in-game settings, did a DDU display driver uninstall and went back to driver version 528.49-notebook-win10-win11-64bit - what can I say it's silky smooth as ever.

I see the nerve wrecking nature of the stutters as even when framerate goes down to sub 30s it is no problem to drive and there's no input lag but with stutters even at 90fps it is unbearable.

I'm on an Asus Vivobook OLED 4K RTX3050 4GB Ryzen 7 5800h 16GB 3200MHZ 2TB 990Pro

 

[SJBHomebrew]

After never having ACC run without stuttering, and returning after buying the GT4 pack I was determined to try and resolve the issue. I was running at 80 to 120 fps in 4k but was still plagued with the dreaded microstutters.

Most of you may already know this, but for those who it may help.

To resolve the issue (for me anyway) if you locate the file ac2-win64-shipping.exe (which in located in your ACC game folder SteamLibrary\steamapps\common\Assetto Corsa Competizione\AC2\Binaries\Win64) - right click on it, select properties, select the compatibility tab and click on Disable Full Screen Optimisations. In game set the frame limiter to your screen refresh rate and turn on V-Sync. Windows Game Bar Mode also needs to be disabled for this to work.

I also used the same same option on the acc.exe file (which in located in your ACC game folder SteamLibrary\steamapps\common\Assetto Corsa Competizione\AC2) just in case.

It's cured my microstutters and I've been able to put most settings back to epic on 4k and retain solid 60fps with no stutters

Kudos and my eternal thanks to PhilS13 at the AC Forums who posted this solution over a year ago, just wish I'd found it sooner.

Dude!! I know this post is a few years old but to anyone new to this issue. Try this first.
I run an RTX 3080 Ti i9 13900k on a new os build and only had stuttering on ACC.
Seen this post tried it and Boom! issue fixed.