Every once in a while when I feel my computer is starting to run a bit slow (every like 4-5 months) I reset my computer to factory settings which makes it feel like a new computer. Now is the time so it'll take me a day or so to get GW2 up and running again.
I'll have TS and will probably pop in if I feel like it. I'll be back once I finished getting my computer fully set up and guild wars redownloaded.