Same issue here. Everything worked fine last week when I logged in and played for hours. Logged out at the SW airfield next to Cherno and I logged into 2 different low ping US servers to find my usual 30+ FPS dropped down a staggering 2-3 FPS. In its current state, the game is unplayable for me with this last patch, so I can only figure whatever changes were done may need to be looked at by devs. System specs are not the issue as I'm running a core i7, 6GB DDR3, and a GTX 570 on Windows 7 Pro 64 without issues all last week.
