Looking for ways to improve my videos

https://youtu.be/NKmbVnYTC5A?si=3C54M70HNrxbuJiS

I decided to shorten the length of my videos because YouTube analytics tells me viewers only watched 20% of my video. Should I shorten it even more? I'm also considering time stamps to organize the points in my video. For example, ATPs in one portion of the video, hands battles in the next, trick shots, etc.

Any input is appreciated!