My shop images are blurry

This is from the Woocommerce settings using images that are too small and your theme using a larger image size.
Go to Appearance > Customizer > Woocommerce and adjust the image sizes to be 1000px by 1000px.  That way anytime woocommerce pulls an image for your products, it will be at it’s largest setting and not blurry.
After you change the settings you will need to run the Regenerate plugin on your shop images.