Greasy Fork

Optimization: After appending the newVideoElement add line newVideoElement.play(); below so the video plays directly after first click (as it would with the original player) and no second click to play the video is needed.

Thank you, any other recommendations please feel free to comment.

Welcome :) You can find my version based on your code here:
https://greasyfork.org/en/scripts/526331-thisvid-com-native-player-html5-and-download/code