Well I thought it was just me, but looking at basil it's everyone.
This is what MS is doing for me: Freezing in spikes that come every 5-10secs. Spikes can be anything from 1 second lag to the whole client crashing. I tried to relog after d/c, but the lag was so severe that MS literally jammed my whole computer before I closed it.
I was wondering if this is related to hackers or multiclient bug