After the latest patch, I've gone from having a constant 60 fps (v sync) to it dropping as low as 15. Now that would be fine if I had experienced this before, but ESO is the only game I see this in and have never experienced it before. I have lowered my settings to minimum, turned off all addons, removed and placed my GPU, cleaned any dust on any fans, turned off and on multithreaded rendering, reinstalled the driver for my card and cleared my shaders cache. There are no new hardware/software changes.