[alpaca128]

> But I can see the difference when a game is at 60fps and 120fps on all of them. Not sure why

Because twice the refresh rate means half the latency. And in games like shooters any mouse movement causes the entire screen to change, which makes lower latency very noticeable compared to just a moving cursor on the desktop. This is why VR feels really bad on low framerates, the latency between head movements and screen updates is too long.