crosstriggering

I just took some time to complete my megadrum and drums. And i noticed that there is alot of cross ftriggering. So when i hit snare some cymbals and toms will also fire. Only acures when you hit harder but since it so sensitive you already hit hard when you just hit it. So how do you fix this? It has nothing todo with viberations already tested that. What else should i check?