I always figured in my own head canon that he had somehow got ahold of something like some kind of proto "super soldier serum" on the black market. I mean in Echo he had tech installed in his head to translate sign language so who knows what else he could've used to augment himself?

Yeah I didn't care for Ahsoka when she debuted but grew fond of her in later seasons of TCW. I honestly believe ditching the tube top has a lot to do with this on top of her character development. Toward the end, I grew sick of Anakin, Obiwan, and Pe and was more interested to see where Ahsoka's story went, in light of the foreknowledge of order 66.

Her duel with Maul, and survival of Order 66 were the highlights of the series IMO

I liked Cade Skywalker but I liked Darth Krayt more. I loved that he was Asharrad Hett (sic), a tusken human jedi who returned to Tatooine as a survivor of order 66, who lost an arm to ObiWan Kenobi in a spat over his tusken clan raiding settlements thus causing him to be outcasted by his clan and the Jedi. It was such a cool story arc imo