Well, I have pretty the same config than AaronMyers, and I turn arond 18/25 FPS too, with all trafic 100%, AS6, and LevlD767... I 'm really satisfied, sure !!
Strangely, my FPS are killed litteraly on Aersoft Frankfurt, but Heathrow turn OK 19 FPS about !!
No, seriously, I thought that the complexity of JFK scenery (almost with all those 3D Objects) would be harder, but i'm really surprised !!!
See you