Yeah response and peak rpm both are affected.
When the mixture is off your clutching becomes inconsistent. (Slow boost = overclutched through the rpm range) (fast boost can blow through your clutching and overev then start popping)
If your peak rpm is lower than 8200 or higher than 8600 your fuel mixture will be off at peak boost. (And it will boost to peak 5 psi at a max shift of 7600rpm but actually be running lean and have detonation)
it can feel “loaded up” like an old 2 stroke dirtbike.
when running right:
I think a N/A 850 twin sled feels a lot like a ktm 300 with a woods pipe ( a beast off the bottom but flat on top) and a turbo at 5 psi is a cr500 with a rev pipe. (Soft off the bottom but a beast mid through top if you gear it up)