I think I know what you're saying,so I'll try to give advice:try to thighten the tuners of the patch until it's surface doesn't move down when you push it,and get a double patch or something similar(I think this is the most important part).I don't know if this will help,but jaska uses evans and remo patches,so if you've got money give it a go,bun I don't know if this will really help(if not at least you'll have an awesome patch,LOL).oh,and hit the bass drum with strength,not only touching it softly while you play.this changes a lot the sound.
PD:sorry for the specific names of parts of the drums.my mother languaje isn't english and I don't know much about this names.