Just upgraded the latest version for my N7 (wish I hadnt) it's now going incredibly slow doing anything. Any way I can revert back or sort it so it's back to its normal speedy self?
You probably have two updates awaiting you, 4.4 and 4.4.2. I suggest you get your system up to date and keep it updated. Some people report problems with every update, but I haven't experienced any. If you do have a problem, this forum will always be here with suggestions and fixes.