for "Window Animation Scale", "Transition Animation Scale" and "Animator Duration Scale", change the setting to "Animation is off". Just click on each of those 3 settings and there will be a list of options for you.
@SamsungA53017 Have a look at the screen shots - But you may find that the results of making changes here (in Developer Options) might speed up your device - BUT you may also not like how it looks after - Keep note of any changes that you make so that you can revert back to the Stock settings if you want to 😉🐧
