When I asked Tech Support, the rep advised that I backup my WTF/Interface folders. With the new WTF/Interface folder everything went back to being super smooth. But again a few weeks later after downloading the addons fresh and reconfiguring everything, the issue is now back again.
It starts out slow and unnoticeable, then maybe a week in I start to notice small spikes in lag and FPS and now 2 weeks in, its completely back to 1 FPS every time I move or turn around. I can hear my hard drive activity going crazy aevery time I try to move or turn. This only happens in The Golden Lantern. It also occurs when I'm in the Vale of Eternal Blosson Zone but not as bad as The Golden Lantern. Everywhere else is smooth (IF/SW).
I tried to disable the addons one by one. That didn't help. I can't delete the 2 folders again and try the addons one by one since this problem seems to occur a couple weeks later. Some addons haven't been updated at all and are still in 5.1 status and they are Auctioneer and Postal. The majority of my other addons are 5.2
Anyone with similar issues? How did u fix it? This is really annoying.