
pkd
Published
LD_PRELOAD="" PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr %command% -dx12
Older versions of Steam did not have problems. Recent versions have caused unplayable FPS loss and stuttering anywhere from 20-40 minutes into the game, forcing a restart. The LD_PRELOAD="" commandline workaround handles this problem.
Probably related to this bug: Unified DXVK/VKD3D lag timebomb in most games if compiled from git #4436
For 1440p, I cap fps to 60 to keep the experience smoother. My favorite settings are: resolution 1440p, fullscreen, vsync off, quality low, streaming memory high, motion blur off, ambient occlusion off, shadows low, AMD FSR 1.0 ultra quality. This gets me ~50-60 fps consistently on this old machine everywhere and the game looks great.
I used to be able to play this game without FSR on higher quality settings (up from defaults) with the same hardware. Recent changes to Steam and the software stack have killed FPS on nearly everything.