1998 Honda Prelude hesitation when accelerating

I just recently purchased this car and one thing I noticed after I bought it is when you first start up and drive the car the performance is exellent and feels like it should but after a couple of minutes of normal driving or after I rev high and switch into another gear (seems to make it even more hesitant) at high rpms I begin to feel a slight hesitation and then it picks up to normal again. I spoke with a mechanic and he said it could be either a bad distributor or bad clutch but I was wondering if it could possibly be something else. Remember it doesnt hesitate when I first start driving. I appreciate any help you can give. Thanks