Customize time notifications for correspondence games

I don't understand how the app decides when to prompt me to move in my correspondence games when my time is running low. I would like to be able to customize this to have more frequent warnings when my time is very low (1 or 2 hours).

Well I suppose what if your phone took 3 hours to load?
You'd just be in if u saw the notification within an hour.
I like this idea tho.
Maybe it's making everything a bit too complex tho?
I dunno really 😂