I'll be honest... The series experienced rapid villain decay when Moff Gideon showed up. Giancarlo Esposito was fine in Breaking Bad but his character here lacked all the nuance and subtlety of that one. Just too try hard and too smug. Like I get it... Really.
In my opinion, smug tryhard is *perfect* for an Imperial Moff. The Moffs were, after all, civilian Imperial authority figures selected on the basis of ideological suitability, and given authority for the specific purpose of suppressing dissent from local governments and populations. They were not military officers (some, like Tarkin, had military backgrounds but this was not a requirement), and they were *not* generally competent people.