So does LE in fact have delay compensation?

[digidesigner]

I just visited a friend who has been with his new mbox only for a couple of days and had a problem. His problem was that even tough the H/W buffer was small he had an big delay between when he hit the guitar string and it reached speakers. When I opened his session there was a RTAS drum synth in the session with some midi beats and his guitar track... and an aux input that the guitar track was running thru and there was a t-racks mastering plugin on that aux input that created this big latency issue my fiend had. SO obviously bypassing the plug took care of his issue... but...

What made me wonder was, when he played his pre-recorded tracks thru the t-racks with midi drums running from the VI they were more or less perfectly in sync!? So PT took care of the delay compensation!? I thought LE did not have that!? Am I missing something?