I have lots of stalling and freezing issues particularly when zooming in or out, or turning the map. I also get them when transitioning between screens like into the ship designer they can last 10 seconds to about 50 seconds during which time the game totally freezes, makes playing often frustrating.
I have 6GB Ram
An old 4 core Duo processor.
and a nVida GTX295 Video card.
I even get this on Medium sized galaxies, switching my card to single GPU mode seemed to help slightly though I still get some freezing, as did actually unloading rather than just disabling Bullguard. But I still get freezes some of which last up to 30 seconds, just not as often.
Noticed they don't seem to get these issues on the devstream.
Also the combat viewer is very prone to freezing and stuttering, wonder if it's because the GTX295 has only something like 860Mb ram for each GPU and it's pushing stuff in and out of graphics memory while the CPU is busy with the AI or something like that.