First thing, is the tempo set correctly for the midi song so the drums generated at correct tempo?

highlite the section of audio that you want to move, hold ctrl key and use mouse to click/drag audio.

I find it best to do this in the audio edit window for preciise drops
/yep, that's preciise with two eyes. gotta use 'em both.

I do not work here, but the benefits are still awesome
Make your sound your own!