Hello,
I saw the screenshots you attached. Basically the product images are controlled by WooCommerce and our theme doesn’t influence this. WooCommerce Allows some settings that you can find under Appearance >> Customize >> WooCommerce >> Product Images.
Screenshot for Clarification: https://ibb.co/301pXzw
You can set the main image size for the product page from Theme Settings >> Product Page.
Screenshot for Clarification: https://ibb.co/pZnF4gJ
Best Regards.