Currently I have the below code, which works perfectly for what it is, however during the inital page load, it takes the 40 seconds before the content from handle.php appears on the page. How can I make the contents from handle.php appear on the page during inital load.

Then require 40 seconds for future scans?

$(document).ready(function(){

    jQuery(window).on("load", function(){
 
     refreshInterval = setInterval(function(){
        $('#box').load('handle.php');
     },40000);
 
    });
})