Clean your IACV, intake, and whatever else you think it might be, causing it to accelerate slow. This is a routine maintenance in your car, and should be done with higher mileage! I know mine needs all that, so since I can't find a better motor, with less miles, I am going that route! Clean everything up with some simple green, wipe it all out, and enjoy your car, once you put it back together! Auto cars aren't that bad... I had a nice 89 toyota celica for a couple years, and it started getting sluggish, I changed out my fuel filter, and it fixed the issue... It might be a clogged filter! Check that out, also!