Controller is disconnected.
In 1920x1080 it seems a little bit better (But it´s not smooth, too. Feels like low FPS. When I only move the character without moving the mouse it´s okay).
And as I said, I can´t play the game with native resolution (2560x1440) in fullscreen mode, only windowed! Fullscreen I see only 3620x2036, but it jumps back to "Custom" when I try to choose this resolution.