Every time when i'm sequencing a drum track using my keyboard (Novation Remote 37SL, connected via USB) i got some slightly delayed midi notes frequently (some of them are really off, like they play a second later). It's like Live is not able to handle all the midi notes at the same time. This happens on both my desktop (XP SP3) and MBP (OSX 4.11). I'm running 8.0.8 on both computers. My sound card is a Fast Track Pro, connected also via USB (got the latest drivers). Interestingly enough, i don't get this kind of problem when running Reason 4 in standalone mode (but i do when i rewire R4 to Live).
I think this is really weird, and i'm worried since i got a gig next week and will use this setup (MBP + 37SL) to trigger my drum sounds (Addictive Drums) in Live.
I wonder if any of you guys have a similar problem or have noticed this behavior also.

Any help will be really appreciated.
Thanks!