Hello,

To change the images size of the woocommerce you have to add the lines below into function codeless_images_size():

add_theme_support( 'woocommerce', array(
'thumbnail_image_width' => 200,
'gallery_thumbnail_image_width' => 100,
'single_image_width' => 500,
) );

You can change the image width by change the values above.

I thinks that the line above will also fix your issue with the image zoom.

About the last question i think isn’t possible with the theme default features.

If you can’t do the changes above by yourself contact us and give to us your wp creds so we can do the changes for you.

Regards!