Ok so for the last day now on World of Warcraft when you enter an instance you become frozen as in its almost like severe lag but you dont think its technically lag because fps and latency are fine

Due to a recent patch, 3.3.3 to be exact, there have been multiple issues with transitioning between zone and even just logging in. One of the suggested solutions is to remove all the addons in the addons folder that start with "BLIZZARD_" These are created automatically by WoW, and if you delete them, they will just return. But it is just a suggestion.