I mostly listen to spoken word content (documentaries, quiz shows, plays, panels etc). I download quite a few hours per day, and I mostly get through it by upping the tempo (quite a lot).
However, I have other languages than english, and I also get content in those languages. However, for those I usually need to listen at standard tempo - I'm not good enough to catch everything when it is sped up.
It's OK - I can bring up the equalizer to toggle the tempo. But it would be great if I could just set it when I bring in the content, and then when my "Current Listening" playlist is going, the tempo would change automatically.