Similarly to @cobalt5, I noticed a slowdown on my website due to the content served by jsDelivr. Given that I do not utilize the widget for nominated day delivery, I have wrote a code snippet to disable the CHECKOUT_PLUGIN_UI_JS script, thereby preventing the loading of content from jsDelivr. You can add this to your functions.php file.
// Remove Sendcloud jsDelivr Scripts
add_action(‘wp_enqueue_scripts’, ‘remove_checkout_plugin_ui_script’);
function remove_checkout_plugin_ui_script() {
// Dequeue and deregister the CHECKOUT_PLUGIN_UI_JS script
wp_dequeue_script(‘sendcloud-checkout-widget’);
wp_deregister_script(‘sendcloud-checkout-widget’);
}