First of you do need to go to the official home of EW (
Sounds Online) go to the updates and find for the product you use. There should also be a DFD update (otherwise they don't work!
). Now if you don't own the copy legally, I don't think there should be any problem, but then again... :-/
anyways, to the DFD settings you can set how much of the sample "head" you will load on your memory. The more you load, the more RAM you use, but the less trouble is for your harddisk. If for example you load 2 secs, in the 2 secs kompakt needs to go to the hard drive find what is missing and collide it with what is currently playing. If you are playing 50 notes at the same time, this IS a lot and maybe your hard drive, and your CPU can't handle it. If you tell kompakt to load 3 secs, instead of 2, then there will be more time and less crackles, pops, etc.
9 msecs is not bad. When you need more detail, just solo the one you use and the necessary and reduce buffer again to 7 msec, etc. It also has to do with your soundcard (and I'm currently at 3 msecs, when working on a piano, and don't use it for a full orchestra, since it's at 24 msecs!
)
EDIT: I really need some kind of salary in here!
(joking of course)