i hate to say it man, but there isnt much to do to get it to move faster than it is. If you turn off the pc in the middle of updates there is a chance that something could get horribly broken and a need to reinstall the entire OS would have to happen to fix it.
You just have to wait it out. I have been in this situation with my laptop too. I open it up in class for notes and updates are installing. It happens. lol