I do experience from time to time little microstuttering ingame. It's like while playing everything runs fine, but just freezes for 1 second and then just continues normally. As written the game runs with +80 fps but microstuttering is occuring from time to time. I would say approximately about 2 times in an hour.
My Settings are on ultra (Bloom deactivated, AA deactivated).
CPU - Ryzen 7 1700x
GPU - R9 280x