I was just in the DA and had shot a 109k4 when frame rates went from 60 to 12. Two other players within 6k also reported their frame rates dropped to near 0 at the same time.
Also, while flying in the MA, there is a certain spot on the map when you fly in it, the game locks up for ~10 seconds, then it comes back fine. My video frame freezes and I lose sound during those 10 seconds.
Also, many times in the past few weeks, I'll report a massive frame rate reduction from 60 to ~12, and reports on local vox confirm others experienced the same thing at the same time.
I'll post the map and location next time I see it happen.
BTW, the game currently looks beautiful!