I built a new pc 2 weeks ago. I have Ryzen 7 7800X3D and RTX 4090. I did some benchmarks last week, and recorded 251 frames per second in Shadow of the Tomb Raider at 4K with DLSS set to quality and settings set to highest.
I installed Vorpx and tried the game on my Quest 3 headset but it was very blurry and I had distracting artifacts on screen. Also performance was bad.
I deactivated Vorpx but performance is still way down compared to last week. I just recorded 140 frames per second with the same settings which is 45% less. I tried uninstalling and reinstalling the game but it made no difference.
As far as I am able to tell it seems the performance is unaffected in other games.