I know I'm not the only one that gets this, but randomly in a match the mouse cursor will appear on my screen and move around when I aim. It is very distracting and leads me to believe it is causing input lag.

I will try to find a picture of video of it in action, but it happens frequently...i am not sure what causes it or if it is random.

The game still functions as normal but instead you have a crosshair you are aiming, and then the mouse cursor moving around as well.