Hello,
1. Many thanks for adding “Shipping tab” static block on my site.
1.1. I have checked the default theme (Storefront) as you recommended and Additional Information tab is shown on the site – https://prnt.sc/pdaz7w
So how I can get and manage this tab in your theme on my site?
2. Thanks for your information about the plugins.
3. New very important issue. There is dramatically site speed drop while I apply your XStrore theme on the site compared of default Storefront. Default theme open any page shortly but XStore makes you wait for ages… You can see it by open any page on my site (main page, category or product pages).
What is the reason? How to improve site speed?