Resolved by author
Reported for: WPML Multilingual CMS 4.6.5
Overview of the issue
If you’re using WPML alongside Order Delivery Date plugin, you might notice a significant delay when accessing your list of orders at WooCommerce > Orders.
Workaround
Please, make sure of having a full backup of your site before proceeding.
- Open …/wp-content/plugins/order-delivery-date/includes/orddd-common.php file.
- Look for this line and comment it out:
$loaded_language = wp_download_language_pack( $lang );