here are 3 ways to save time

1- Avoid getting a Highscore

if you beat a highscore a cutscene of Vibri singing will play, while this is cute its a waste of time so avoid getting a highscore

2- Good Menuing

Just dont mess up your menus, as simple as that

3- Pray for good loading times

Play on the best platform you can, loading times can make a difference