I have something annoying with my Megadrum set with XLN Addictive drums.
When I hit each pad separatly (doesnt matter, cymbals, snare, kick etc.) sounds is ok (latency 20ms is also playable), but when I hit 3 pads together in fast way ( lets say 3 Times/sec) for example Hi Hat + Snare + KICK , very often I dont hear sound of kick, sometimes snare too

Do you have any idea what fault this could be? Do you need any more info to figure out, what this could be?
Thanks for all advices!