Did the same test as prebeta patch...bomber intercept, my plane vs one bomber....same avg FPS - around 65, BUT still not smooth, although a bit better than before, stuttering when in headon with bomber....
Second test...fight near Dover, me and 2 me109....again same FPS but a bit smoother than before beta patch.....then when I got over cliffs near towns with buildings (set to low here) I experienced stutters....
And in both cases I noticed slight screen tearing (I have vsync ON and trackir).


i7920@3.5Ghz
GTX470 TwinFrozr2 - Oc to 750Mhz on core
6GIGS of RAM
X-FI gamer sound card
1680x1050 full screen res (native resolution of my monitor)....