maintain a steady frame rate of 90 fps or higher, or people will suffer from headaches. Not True, I get solid 90fps from my rig on a lot of games, and with ASW off , it doesn't hender my FPS at all; it may slow to 31 fps which still chugs along without any issues. the new Valve Index also supports 144hrz, which alot of people get motion sickness from.,
don't move around like you do in first person shooters, or people will suffer from motion sickness. and not true; causes those people with sensitive inner ear problems. 90% of users don't suffer any of these. The new Valve Index plays up to 144hrz.