Yeah, I noticed a distinct presence of lag when I upgraded to 2b7.

I think it is mostly cos of the new track scanning stuff - you'll notice the first time you play a track after the upgrade, it is slower than the subsequent times. I think I remember reading in the release notes that it has a new feature which builds a kinda chapter list for scanning the first time you play it. I think I remember seeing it build this up graphically in one of the new info views.

Still, it is a *bit* more sluggish. Definitely. Looks pretty funky though, huh?