That looks pretty good sitting still in a picture. If you (or anyone else) could get 30fps in the air I'd be surprised, let alone in a furball or even around a field or town with those settings. The game is not playable at those settings.
Horse crap, ive been playing with those settings for 6 months now (when i got this new card) and ive been in 80 people missions (54 buffs and 26 fighter escorts) and the lowest FPS i got EVER in that mission was 48.
EDIT: Don't believe me here:

Shooting guns, clipboard opened, puffy ack firing, 8in shelling base, multiple friendly and enemy cons.
55 FPS (note it dropped because I took the SS, it was constant 60fps the whole time)
There is nothing wrong with the graphics engine or how the game renders objects, its peoples computers or too many applications open. Because the system I have could be built today for about 1,100 $
Note the blur in the screen shot is because of the way screen shots are taken.