Control with a gamepad (Cuphead)

Guys, bought a gamepad not so long ago, and yet not really understand how to put hands on it (old habits box your thumb on X and A, and the other hand control), and caped this some sort of trouble, you need to sharply push jump to parry (bottom-up), but I physically bend your thumb can't push as fast on the space bar 10 times faster, it turns out, pereproyti game for S completely, constantly hit a head about the pink, maybe a shot on another button what to assign, or jump, because it is absolutely not convenient, try a shot at LB to put it, but then the arrows becomes not easy to press.