yea man i had the same problem with the drum tracks and stuff on LE and TRUST ME cubase XS hadles things ALLOT BETTER. but the battery problem i have too. if i make a track and use battery 3 with it it just takes forever to load i mean i could take a shower in the time it takes to load! but back to the point. EZdrummer is the ****! its so easy to use and makes it sound super professional and to the untrained ear sounds like a real drummer! its a good investment and it loads when u launch it not like battery where it loads before the rest of the track. keep me posed if u decide to make these investments i had to do allot of fidgeting to get it working properley!
P.s check out ezdrummer on youtube :)