How do I control video playback speed?
Go to a video. Tap the video once, then tap More . Tap Playback Speed. Select the speed at which you'd like the video to play.
How do I increase my playback speed?
Part 2 How to Speed up YouTube Videos on iPhone/Android
Open your YouTube app on your mobile phone and go to the video you want to speed up for watching. Click the video once, and a menu overlay to appear, tap the three dots. Then select the playback speed from the new pop-up.