[Aeolun]

If you switch from 60hz to 30hz you absolutely notice. I wouldn’t think it’s wrong to say it is jarring.

30hz is still perfectly usable, but you constantly feel as if something is off. Like maybe you have a process running in the background eating all your CPU.

I imagine going from 120hz to 60hz is the same thing. It should be theoretically indistinguishable, but it’s noticeable.