Early access launch it took me a solid six-seven hours to level Viper to 90 just doing EW fates while I waited on the very long dungeon queues, far from the most optimal method but it wasn't that bad either. I just don't have Zadnor unlocked so I didn't bother with Bozja. Do your beast tribes, eat your food, keep fc buffs up, and you'll get through it, then when you reach Dawntrail you can quit the game in peace because its terrible.