I know how you feel. This game is also unplayable for me too. It kept crashing on the Grand Harvest boss and I got no loot because of it. It also does it for all the faction bosses, I can't even get any soulstones to upgrade because of it AND I am on the lowest settings. Optimized for combat, low resolution, CHARACTERS HIDDEN (ctrl + F) and I still crash. I'm on a decent PC as well. I play a Warlock, but I'm thinking of quitting it and playing a Blade Master, then if the lag doesn't get better, I'm gone.