If your Surface or any other Windows 8 device is slow, it might be because you have things running in the background unbeknownst to you...and here's the SIMPLE FIX
When you close down an app by pulling it from top to bottom you wait at the bottom before you slide it all the way down. The app tile will actually flip. After it does that the app will be closed and not held in memory. If you just drag it from top to bottom fast you will see that it continues to use valuable memory shown as shown in the Task Manager and what you thought was closed never was.
Hehehe....I love this place......DRINKS FOR EVERYONE!!!!