what are you using as a hypervisor? if it is virtualbox you will struggle to get smooth video playback, its gpu support is very poor. vmware is much better. yes yes it is proprietary but so is virtualbox with extensions which is the only way to make it kinda usable lol
At mine it was not. Hotspots and the like that stayed up for too long were flagged and action was taken to have them disabled and the student reprimanded.