FWIW I did manage to kill her on turn 6 once first time round. Not close at all this time round though. You need a lot of luck and the right cards to do this.
I can tell my average clock will speed up if I crack and use Mirrorpool.
I do appreciate the better balance this time round, except Tezz can still go nuts and beat you quickly, even if you have an “optimised” deck.
You get one poor draw and bam your dead. I do wish there were mulligans (+/- penalty) or scrying.