I have the same issue running the Varjo Aero. 7900x3D, 4090, 32gb ram. I get micro stutters when moving my head from side to side. It’s about 50% -60% percent of the the time. The other time it’s smooth. This goes back and forth. I am at 80-90 fps. Running all current drivers and Bios. This happens on all low graphic settings as well. Changing the graphic settings seems do not help anything.