Mouse lagging

Hello, I started playing LOL after a very long time. Unfortunately but I often have strange mouse lags when I run to the enemy and try to use the attack.. It's seriously annoying. The cursor moves very slowly like just lagging and it makes a system sound as if someone clicked too many times on the keyboard or it would be blocked. My champion registers movements that I don't want it to make at the moment, e.g. runs forward although it was supposed to turn back. I don't have FPS drops, they stay above 60 (but I have set them to max 60) No matter what graphic I set, it's still the same so I guess it's not a problem. My ping is fine mouse/keyboard too, I tried to reinstall LOL but without any changes. Any advice?
Report as:
Offensive Spam Harassment Incorrect Board