I just switched from Windows 11 (because Tobii Eye Tracker 5 wasn’t working) back to Windows 10. And this has also fixed my “Limited by mainthread” problem I had. Not matter what settings I used, I could not go over 35 fps (using a 3090 ti). Now not only does the eye tracker work but also I am getting constantly 60+ fps.
It is known that Win 11 2H22 is causing problems so whoever is struggling with that - just switch back to Win 10 and be happy again.