I flew some 20 mins in ATAG. My observations:
Average FPS looks actually a bit higher, my *impression* is around 5%.
Some occasional stutters which I didn't experience before, 2 in 20 mins.
Horizon is more hazy
The bf-109 climbs better beyond 4500 m
Had ghost dots again
Revi is less bright when lit at 100%
sound radar is still there (I know, they didn't promise to fix it ...)
Daimler Benz sound is gorgeous ... a 109 zoomed on my 109, I could appreciate a lot of nice harmonics ...
Small graphic bug inside the 109 cockpit, you can see the grass through flank and wings, the throttle cable texture is missing:
All in all it seems the right direction. Good perspectives IMHO.