just got my scoot back after bbk

[dwint51]

I just picked up my scoot after a pipe and bbk kit installed.the mechanic says he doesn't like to adjust the oil pump but he put some extra oil in the gas tank for break in.i gave it full throttle for a few seconds and its slower than when it was 50cc.he went from a 70 to a 75 main jet also.im just hoping this is slow because of all the oil he put in there.any ideas or should I try a 80 main and see if that helps or give it time to break in the correct way.