The older beta was fine for me as well. Over time it slowly got slower and eventually got to the point where I had to wait two minutes for Outlook to open. Perhaps it has to do with the fact that I have five accounts in Outlook? PC is decent enough at 3ghz with 2gb of ram. I miss xobni but it had to go.
Yeah, it gets really bad for me, too. I had to uninstall it. I have like 6 gigs of historical emails, though. Maybe I'm atypical, but it just slowed down Outlook to a crawl after a while.
RE startup time, we know it's an issue and we continue to work on it.
RE slow during normal Outlook usage, please email me if you'd like to try it again with level 3 support. I'd love to figure out what's going on in your case. adam dot smith at startup-name.com. Thanks.
If I had to guess, it's because overnight, maybe, it does a lot of indexing that forces pretty much everything to swap out to disk? And maybe with everything paged-out, the whole machine is slow when I need it the most? It just doesn't seem to ever really recover, though.
Google's old desktop search product (haven't used it in a while) had that kind of problem which made it really painful to use since it did background indexing frequently back then.
I'll reinstall and drop you an email if I see the problem return. It happened twice, once before you launched publicly and again after. Now, though, I have a laptop with >1GB of memory so maybe it won't be quite as bad?