For me, with all the podcasts, it's that I now listen to podcasts and audiobooks (free from your local library) at 4x.
And I'm never going back. It's become an incredible hack for learning efficiently. I'm convinced all students will be doing this in the future, if they're not already.
Start at 1.2x, 1.5x, you'll work your way up slowly over time. Daily reps will get you there. You'll realize how slow most things sound at 1x.
Just try to not let the efficiency treadmill get the best of you IRL; prioritize still being present with your people in real time — don't speed that up.