How to change the number of products on the shop page in ShopIsle
ShopIsle comes with various hooks and filters which allows you to customize the theme without editing core files. You can change the number of WooCommerce products on the shop page using loop_shop_per_page filter. You can add the following code to the functions.php file of your child theme or site specific plugin to do that:
add_filter( 'loop_shop_per_page', create_function( '$cols', 'return 1000;' ), 20 );
Replace 1000 in the above code with the number of products you want to display.