100 fps to 95-70fps is definitely noticeable, 30% is way too much.

I'm not saying it's not noticeable, I'm saying it's not a deal breaker. If my only holdout from switching to Linux from Windows is gaming, I'd take a 30% fps hit, assuming my fps is generally in the ~150 range, not the ~60 range.

If Linux dropped my frames from 80 to 50, it would be a deal breaker.

Fortunately I haven't noticed performance impacts so I'm on the hype train.