Your list of menu options is slow on loading…
Here’s a funny idea:
Pack your menu into a list, saved in a single item. Use that single cell to populate your repeating group. Let that load first (prevent the RG from loading it’s bigger list by blocking it to wait until the other content has loaded). So the menu loads from the regex parsed cell, and in the moments that people are taking a gander at the menu, your GR can load from the database
The reason I say this is that you mentioned that your list rarely changes. In those most beautiful of moments, I really love using a jam packed object into a cell. It loads in a blink and you can extract data from it with good ole regex my friend!
Just a thought.
Have a great day!