I've had to stop playing wipeout for 2 months and found the framerate difference coming back absolutely fine.
I was constantly complaining about the controls feeling sketchy but I don't notice now. Just managed to get zone 34 on chengou which is all I ever managed in 2d.

Crossfade issues go after half hr warmup and I play in 70 to 100 3d strength depending on how tired I am.