New clutch? Reclutch?

Im new to the rzr world with a 600 mile 2011 rzr s with 27" tires on it
Id like to get a little more jump out of the hole. I’ve read on here about guyz putting different weights in or putting an aftermarket clutch in.
I also would like to keep my top speed the same, not because im driving Around with it to the floor all time but i don’t want it to be reved out driving around at 40mph.
Any suggestions would b awesom.