Hello there,
I’ve tested your site with a few light testing online tools (Dareboost, GTMetrix and similar)
There are few things to highlight before looking for issues in the theme:
– you are using a lot of plugins, and some of them are duplicated and not useful or outdated
– you are using a plugin named “Test jQuery Updates” which states in his description: A feature plugin to help with testing updates of the jQuery and jQuery UI JavaScript libraries (not intended for use in production).”
– Mailchimp, you are using 2 plugins for the same thing: Mailchimp for WooCommerce, MC4WP: Mailchimp for WordPress
– you are using the google tag manager plugin. Inside of GTM console (on GTM website) you can insert all your monitoring codes. Using it in a proper way you don’t need other plugins to connect to facebook, facebook pixel, analytics and similar)
– you are using two plugins to duplicate posts: Yoast Duplicate Post and Duplicate PP
– also different importing plugins are enabled too.
When you don’t need something, always disable it. Expecially when referring to a Production website.
I can also see something about EWWW and Autoptimize. Their configuraiton may affect your website is a positive or negative way too.