Hey OP, is your ISP based in Texas? Because if so, this thread is for you: High world latency big lagg when in raids - #20 by Zyori-shattered-hand
There are several threads up on the Tech Service forums about this problem. I’m in Idaho, but I’m suffering in evening raids because my ISP’s based in Texas.
Blizzard is aware of the issue, and techs have posted in several threads to let people know they’re looking into it. Here’s to hoping they fix it soon! <3