Hello, Fantasy Prints,
1/ Compare you can enable via Theme options > WooCommerce > Built-in Compare.
Create a static page for Compare in the same way to Wishlist, the code will be:
add_filter('xstore_compare_mini_content_ajax', '__return_false');
2/ Please read this topic – https://www.8theme.com/topic/mini-cart-doesnt-show-products-after-update/
Kind Regards,
8theme team