Today I did a check with the Google website speed tool and saw that the thumbnail images are loaded in their maximum size. In the past this wasn’t the case as we got page speed scores in the 90’s. Is there a problem with the new template? Or how can we fix this?
Be sure that you have specified your images size in Dashboard -> Customize -> WooCommerce -> Product images and regenerate all thumbnails using this plugin https://wordpress.org/plugins/regenerate-thumbnails/
Also, you need to use the latest version of our theme. If it will not help, please, provide us your admin access so we can check what is wrong.