Hesitation on acceleration

I have a 2003 Tacoma that is supercharged with a TRD supercharger, and whenever I floor it it will hesitate before it will start to accelerate. I have taken it to Toyota multiple times and another shop multiple times and every time the computer says it is a Misfire, I've had all the spark plugs replaced along with the spark plug wires and it has not helped at all, Toyota also reset the computer after replacing the spark plug wires but it did not help at all. Using premium fuel made it hesitate less but it still hesitates, but only when I floor it, there is no hesitation if I stay about a inch off of the floor. (I will take a video of what happens as soon as I get a chance and link it)