I installed the game again 2 weeks ago and when I launched it, I started writing down my username and password, but as soon as the dragon in the cinematic showed up my fps dropped really low, like probably 5 fps. I thought it was a bug, logged on one of my characters and even in the game I had the same problem. The following day I logged in again and had no problem, but every once a while this happens and I can't understand why. I tried installing WoW wotlk from different places and on every launcher I play, the same thing happens and it just fixes itself out of nowhere. I know it isn't from the addons, because I tried to launch it without them as well. I even tried setting the max fps in "config.wtf" in the WTF file. If someone knows how to fix it please help me.