Load product prices in the background not working for custom product addons plug

It will correctly load the price but not for the price box on the bottom as you can see in these images.

this image shows it correctly changing the price: https://ibb.co/bjtGDr0

This image shows how it isn’t changed for the product box on the bottom: https://ibb.co/TgKqMGD

Is there any way to change this without using geolocation with page caching support? because that slows my page down dramaticaly

The page I need help with: [log in to see the link]