When I started playing again my mind wasn't clear. Like my brain is foggy. It's been two weeks and against one 1800 two 1400-1500 rated players I played that games. Also there is a 90acc 70 move game. In last 3 days. I got a lot of 90+ acc games last days. I feel I can't think better, my mind is clear. I think better sleep schedule also affects this. I wasn't sleeping well a few weeks ago, but exclude this day this week was way much better. You physical state affects your logical thinking mechanism.