Overview:
Due to the delay from when the cart page loads and our app loads, it is possible for the extra charge products to show for a moment.
Solution:
To have these hidden before the cart page even loads, add this CSS to the bottom of your theme Stylesheet:
.options-hidden { display:none; }
If you're not sure how to find your stylesheet, follow this tutorial:
https://w3trends.zendesk.com/hc/en-us/articles/115003516432-How-do-I-find-my-Stylesheet-