I don't mean the political takes or anything, I meant more the super-stiff acting, the campy premises and the lacklustre "world building", even though I dislike the term. All not the fault of the show at the time or anything, but I cannot enjoy any TOS rewatch these days.

Not arguing against TOS here but you should rewatch the TOS episode were Yeoman Rand get´s raped by evil Kirk and later get´s told by Spock that she probably liked it anyway. That scene made me as a dude who has never been raped feel shitty. I can only try to imagine how watching that scene would make a survivor of rape feel ...