I have this bug tonight: I got 1 fps (instead of 40-50) when i switch 30 deg FOV. Every single time. I was checked the system monitors, maybe i see something. The weird thing, that the "GPU usable" graph drop to 10% in the same time. When I set back, the fps will be normal again (The CPU usage was prickly, but more or less stable 40-60% on all 6 core).
I ask the PC gurus, is this a measuring error (the MSI afterburner show stupid things), or the game behave very weird way? Or what?