Hello,
Thank you so much for purchasing our theme and contacting our support center.
1. Sorry, but there is no such option in our theme and WooCommerce by default. It may require additional code customization or extra plugin but we don’t have an instruction for this.
2. You can specify your images sizes in Appearance -> Customize -> WooCommerce -> Product images. Check also our product page layout options in Theme Settings -> Product page.
3. You need to upload larger images to enable the zoom effect. Otherwise, you need to disable it in Theme Settings -> Product page -> Images.
Kind Regards
XTemos Studio