Slowdown in 2B has been mentioned elsewhere, but I can't find a general performance thread.
I'm seeing huge stutters on the end of nearly every turn. This is probably the best way to describe it:
This is sovereign+army on a run through enemy territory. Notice that there's a huge stutter at the end of every turn (auto turn is on). The big jump at the end is due to the fact that the mouse hit the edge of the screen during a stutter and triggered edge scrolling, but the effect didn't appear until after the stutter.
FPS is ~20-25 at rest, and drops to 1 at end of turn.
In 2A, I saw intermittent end turn stutters and had an at-rest FPS of ~30-90, but it's difficult to compare 2A and 2B because so many variables (map, techs, etc.) are different. The dxdiag is the same.
