Direct link to download VR PerTool:
Link to github
From main folder copy only dxgi.dll and vrperfkit.yml (don’t copy x86 folder) and put it into main folder with game.
VR Performance Toolkit offers upscaling and foveated rendering so I was playing a little with settings and that’s what I’m using in iRacing:
I tried both options (upscaling and foveated rendering)
Foveated rendering gave me +12% but together with upscaling I had +57%!!!
No visible reduction in pic quality inside inner ring. My steamVR res is now 160% with all graphic options med/high. Before I had everything on Low/Med and 104% in steamVR.
Edit vrperfkit.yml in notepad and set:
You have to turn on (Alt +F1) foveated rendering everytime when opening game.
You can also use this settings in other games like Dirt Rally 2 or ACC.
For ACC put these 2 files into “Game folder\ Assetto Corsa Competizione\AC2\Binaries\Win64”
Hope this will help