Do NOT do it. I dont think the time saved is worth it. It hasnt changed irl stuff for me but any media feels painfully slow. I had to listen to a 1hr video conference with a group on 1x speed and I felt like I was being tortured. I had to refocused myself every sentence because i couldn't hold attention on sentences that were being said so slowly.
If you want to consume info fast then reading is way better.