Is there a minimum value for Delay?

This is a great idea, thank you, I will probably use this methold.

Would it be possible to ‘fake’ the effect of adding the XP one by one with some kind of animation on the numbers without actually altering the amount of XP? This question also applies to a progress bar I have, which shows the XP amount. One of the reasons I wanted to implement this add +1 XP methold was to make the progress bar load smoothly, not just skip to the next value.

If animating the XP display number and the progress bar somehow is possible, how should I approach?