[VRay]

It doesn't make any sense to invest much in displays over ~90hz vs just working on adaptive refresh rates

Your eyes really do work at a pretty low speed. At some point it makes more sense to just track the eyeballs and put updated scenery in front of them at the exact instant the game engine produces it, rather than try to run at some insanely high speed generating frames that aren't actually having any effect on the player's brain

90, 144, 240hz, etc all look better than 60hz because there's less random lag between when the game generates a frame and when it appears on the screen. You can't see an 8ms delay, but you CAN see a variable 0-10ms delay that's happening as the game engine and computer monitor drift in and out of sync again and again.