Hello,

It is not Shopify but WooCommerce. Unfortunately, we can’t do anything in this situation. WooCommerce is not designed to have variations form on the shop page. And this information loads slowly if you have a large number of products and variations loaded. That is why we added a caching mechanism using transients there. But when the cache is empty, it may load a bit slower. Note that we never experienced such slowness before with this feature. But taking into account that even with a few installed plugins your website becomes slow, we can conclude that it happens also because of the unoptimized server. We are almost sure that it wouldn’t happen on other servers. Otherwise, we can return your money back for the theme.

Kind Regards