I've 'finished' tv series or film series by reading the synopsis before, the show/film series it self was becoming dull or bad or whatever, but I still wanted to find out how it ends.

Done the same with books too. Usually YA series that I didn't realise was a YA series when I started reading it.

Only so many times you can read about a 14 year discovering they're special and then somehow they kick vastly more powerful, trained and skilled adult ass. Or the other variant in book 1 they're not special, and still win, but then in book 2 they become special and win because they're basically unkillable. Woo-hoo!

Hah, I did that with the Dune series once I was halfway through Messiah. It's a great story but the writing was so hammy to me.

When I binge watch shows, specifically cartoons, I find that I can watch comfortably at 1.5x-2x speed.

I can't quite do this for movies, and I definitely do miss some jokes (e.g. in Bob's Burgers I miss the intro and food of the day gags) but for shows like Adventure Time, I feel like I absorb 99% of what is happening.

I would recommend giving it a shot. Start slow at 10% and work your way up. Stick to cartoons first. It is definitely a different experience, but personally, it's not a worse experience.

GP specifically mentioned movies, but I don't know that a good story would work with the pacing short-circuited like that (eg: comedic timing in a show like Archer, or the myriad pregnant pauses in Mad Men and the Wire). I'll give it a try, though.