No, it would run hotter for sure, but not going to stutter because of that gearing assuming your last one ran good. Change 1 part at a time on the electronics, you will find it. Make sure the servo and esc wires arent pinched or insulation bad, that will do it also.

Its either

ESC
Tx
Rx
Rx batt
UBEC
servo
Battery

swap em one by one.