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Hi @nicewp123,

I hope you are doing well today!

This issue has been flagged to our SLS (Second Line Support) Team so that they can dig into this further. We will post an update here as soon as more information is available.

Thank you for your patience while we look into this further.

Kind regards,
Zafer

Hi again @nicewp123,

The following mu-plugin can help you to achieve it. You will need to change the form ID from 2910 to your form’s ID in this line
if ( e.target.id == 'forminator-module-2910' ) { (edited)

add_action('wp_footer', 'wpmudev_update_calculation_instant', 9999);
function wpmudev_update_calculation_instant(){
	global $post;
    if ( is_a( $post, 'WP_Post' ) && !has_shortcode($post->post_content, 'forminator_form') ) {
        return;
    }
	?>
	<script type="text/javascript">
	jQuery(document).ready(function($){
		setTimeout(function() {
			$('.forminator-custom-form').trigger('after.load.forminator');
		},100);

		$(document).on('after.load.forminator', function(e, form_id) {
			if ( e.target.id == 'forminator-module-2910' ) {
				var typingTimer;
				var doneTypingInterval = 500;
				var $input = $('.forminator-number--field');

				$input.each(function() {
					$(this).on('keyup', function () {
						clearTimeout(typingTimer);
						typingTimer = setTimeout(doneTyping, doneTypingInterval);
					});

					$(this).on('keydown', function () {
						clearTimeout(typingTimer);
					});
				})

				function doneTyping () {
					$input.trigger('change');
				}
			}
		});
	});
	</script>
	<?php
}

You can find more information below on how to use mu-plugins.
https://wpmudev.com/docs/using-wordpress/installing-wordpress-plugins/#installing-mu-plugins

Must Use Plugins

Kind regards,
Zafer

@wpmudevsupport15, exactly what I need, thank you so much, Zafer, you are amazing!