Here a video of the issue:
View: https://www.youtube.com/watch?v=AaNvqcmgL0k
My GPU/CPU usage is abour 60-70% and Vram at 2500.
I am not sure why my fps flactuates between 50-60
Vsync is turned on and i am using a 60hz display.
My system:
GTX 980
I7 4790k @ 4,6ghz
16gb DDR3 Ram (1600)...