Latency issues since last patch?

[Bellator]

I have no idea why I would be having this problem, WoW has always ran great. Haven't changed anything, I left all my addons off until the updated ones came available. Even before I re-installed the addons my latency and frame rate is way off. It was nothing before to get 34fps and latency under 120 all the time, well except for Dalaran. Now my frame rate is consistently under 15fps and latency above 212. Anyone have any ideas what may have happened.

Thanks all,

Bellator