Gaming :: Noticeable Drop In Performance After Updating

I recently updated my laptop from Windows 8 to 8.1. Before updating, I was able to play all of my games just fine, particularly Skyrim, on high or even max settings. After updating though, the first time I loaded a save game it took nearly between 5-10 minutes to load (compared to normal 1 at most). After that they are better, but still much slower than they used to be, and I can also barely even run Skyrim at the lowest possible graphics settings. I know that my computer has the capability to handle higher settings. Did the update change some setting in performance that I am not aware of?