Earlier this year I created a mage and spent my refunded coins on some raid-gear (Burning scroll 4piece, Which I now regret since they've added 522 items).

The problem is my dps, i'm struggling to pass ~43k dps (self buffed). I'm pretty sure i've got the right rotation down, I'm following the correct stat priorities, and my gear is around ilvl480. Any help from some seasoned mages?

maybe lag is an issue? I play on 190-400 ms constantly. Seems pretty smooth to me tho, most of the time.