Rev-x tuning

Eventually plan to purchase a rev-x primary for my 850 max xt from one of the sponsors.The only mod I have is pit bull growler 2.5 tires at stock size.
I am mechanically dysfunctional so I have to rely on paying a mechanic yet don’t feel confident of my dealer or any local wrenches. Is clutch tuning pretty simplistic for any average joe mechanic or do I have to find a pro?
I don’t know what over rev, shift out, etc. is. I could care less about top end, having only hit 65 a couple times but would like to hit 65 as quickly as I can. Looking to get the hp to the ground low to mid range. Thanks