It’s highly dependent on what I’m viewing, of course. Some people just… talk… so… slooowly. If the content is interesting then they get 1.5x. Some people talk a mile a minute with dense information and they get 1x. For myself, 2x is usually too fast to be enjoyable.
My experience has been that it's not just the cadence of the speaker, it can be their intonation and pitch that determines whether I can speed it up. And some deep voiced person from Essex who is recording in their bathroom ... not a prayer, because I can't find the word boundaries from the background noise
