Thanks for using our theme.
1,5) Check now. I’ve deleted demo id’s of categories https://prnt.sc/ujdz3i which doesn’t exist on your live site. You can add images of categories here – https://prnt.sc/ujdzp6
2) Please provide URL of the mentioned page.
3) Theme Options > WooCommerce (Shop) > Shop > Shop elements > Quick view
4) https://xstore.helpscoutdocs.com/article/38-activation-and-purchase-codes
6) To speed up the Dashboard you need to contact your hosting provider. The theme does not have any options for the backend and does not affect the backend.
