It should definitely be a difference but probably not by to much depends really the quality of the controller or Controllers you are getting detailed specs etc. but either way should help keep the motors cooler longer and give a little more performance. Better to spend a little more on high end ones to really get the full max potential out of your ride like Tronic controllers, YYK controller’s etc.. but you can also replace the hub motors with aftermarket modified ones like 2500x2500 or 3500x3500 watts each motor just make sure they match your battery and controller as well so if 72v go for these. Falconpev.com is very good for modifications and customizations. YYK controllers and different add ons and hub motors.