I dunno what is wrong with my DPS if I play pure sorcerer class on my sorceress?
If I subclass into the offensive arcanist tree, I'm around 30k to 70k DPS. And this was even calculated with missing about 25% additional damage on the champion tree.
If I go pure Sorc, I'm only around 5k to 15k DPS. This one got the additional 25% damage from the champion tree.
There was nothing changed on the equipment to do this test.