Surface RT & Windows 8.1

I'm going to preface this by acknowledging that 8.1 is currently a beta, and there will absolutely be glitches.

That being said, has anyone else's Surface been rendered almost unusable after installing 8.1? Apps randomly force close themselves without a dialog, the Music app locks up constantly and takes 10+ seconds to do basic tasks, IE keeps getting stuck when you try to swipe back a page and sometimes reloads content you were on 4-5 pages clicks/taps ago.

Frankly I'm a little frightened... unless there is a HUGE slew of updates that haven't been released to beta devices, 8.1 is going to be a major bomb on ARM.

Anyone else having problems like this, or do I have a lemon?