From the moment I join a group for this world boss, my game becomes literally unplayable. It freezes, sometimes it loads one frame then freezes again for God knows how long, then it stays frozen. By the time it unfreezes, the boss is dead, I am dead too of course and I got absolutely no credit for the kill nor the quest completed. How am I supposed to do this? xd
Sound like your side problem /and 100% is. Try check do you pc cover the rquirements. Also check drivers etc. Bad connection can couse uch problems too.