Update comes out sometime today - from Boxee's twitter feed.

I really hope that general performance of the UI is improved. As it stands, the software is just not optimized anywhere close to the level it needs to be to run on this hardware comfortably.

Maybe I'm already taxing its database limits. I've only got 820 or so movies and 60 TV series currently listed though. I'd say that's a minuscule collection in terms of computational requirements.