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.
Brian if the controller ran to hot would'nt thermael ?.
Not always. Never count on a thermal for anything, they will often smoke before they thermal. I have had one get extremely hot and not thermal, then never build power again and glitch and shutter. It still worked, but the upper RPM range wouldnt work. I would check all the simple stuff before you jump to conclusions though.