I have a rooted Samsung Galaxy S4. I had enabled AirMirror, and everything works fairly well (There is only a bit of lag on the PC end). I find however, that the AirDroid process is taking up 25% of my CPU usage. i had the AirMirror window closed and the AirDroid app minimised to the taskbar. Any ideas on how this problem exists (or if it is a problem in the first place). Note that I am using a laptop, so perhaps the lack of computing power might be the issue?