My Acer Iconia tablet came with McAfee Mobile Security preinstalled. But I think it's slowing the tablet down, and I want to uninstall it - isn't antivirus software on Android overrated, anyway? I can't uninstall it, though; all I can do is force stop, so it will restart every time I reboot the tablet, and there might be some background processes still running. Is there any way to uninstall this app, or am I stuck with it until I finally give in and root the thing?