How is your bottompaint? Crusty?
Anything else than a smooth bottom can disurb waterflow and can cause cavitation.
Or do you meen acceleration?
If so, check the engine, I have absolutly no problem to pull skier or wakeboard, if any too much power so some skiers cant hold on until they are up if I push to hard on the throttle.
Update: had sea trail today, ran 5500rpm 46mph, however at one point it lifted itself more onto the pad and revved too 6000rpm, however I didn't have gps running to track speed as wasn't expecting it too lift up so overall I'm happy with it and it was just me being paranoid
