[Torhal]

Unless you're posting your complete code, any advice you receive here will generally be useless - since the gist I garnered is that this is the case, I didn't bother really looking at the logic of your code. I did glance over it, though, and have some general suggestions:

You're using global variables and functions which is not only inefficient but could clash with other AddOns which are similarly coded or even with parts of the default UI.

You are repeatedly asking for the value of the player's GUID, which never changes. Ever. Get this value at the beginning of the file's code block.

You are using GetTime() repeatedly within loops, which are executing so quickly that each call will produce roughly identical values - asking for that data once per function call (when the event occurs) is sufficient.