Shorter tires actually cause shorter gearing which in turn would have QUICKER acceleration. Not too mention depending on the tires, it is also a bit lighter so less rotational mass can also help increase acceleration also. Is it going to be super significant? No but I've already got 4.08 gears installed and now I'll have shorter tires also lol. I'm fine with wheel gap. Won't be massive but there will be some cause function > form