Use resize function of Smush instead of WP

smush-enable-resize-on-wp-5-3.php

<?php
/**
 * Plugin Name: [Smush Pro] - Use resize function of Smush instead of WP
 * Description: [Smush Pro] - Use resize function of Smush instead of WP (WP >= 5.3.0)
 * Task: 0/11289012348292/1157314744592171
 * Author: Thobk @ WPMUDEV
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */
if ( ! defined( 'ABSPATH' ) ) { exit; } elseif ( defined( 'WP_CLI' ) && WP_CLI ) { return; }

add_action( 'after_setup_theme', 'wpmudev_smpro_enable_resize_on_wp_5_3_0_func', 100 );

function wpmudev_smpro_enable_resize_on_wp_5_3_0_func() {
	if( defined('WP_SMUSH_VERSION') && ( class_exists( 'Smush\WP_Smush' ) || class_exists('WP_Smush') ) && is_admin() ){
		if( class_exists('WP_Smush') ){
			remove_action( 'admin_init', array( WP_Smush::get_instance()->core()->mod->resize, 'maybe_disable_module' ), 15 );	
		}else{
			remove_action( 'admin_init', array( Smush\WP_Smush::get_instance()->core()->mod->resize, 'maybe_disable_module' ), 15 );
		}

	}
}