Widget takes 3-4 seconds to load

The attached html page contains only the widget code and it still takes 3-4 seconds to load. We used the same widget on our masjids website homepage so it doesnt look nice if there is a blank space on the home page.

<script type="text/javascript">(function(w){function async_load(){var s=w.document.createElement('script');s.type='text/javascript';s.async=true;s.defer=true;s.src='https://masjidbox.com/widgets/loader.js';var x=w.document.getElementsByTagName('script')[0];x.parentNode.insertBefore(s,x);} if(w.attachEvent)w.attachEvent('onload',async_load);else w.addEventListener('load',async_load,false);})(window);</script><a data-masjidbox-widget="bWDhPHbR4Zk8R2jnbJMXU" data-masjidbox-ifr href="https://masjidbox.com/prayer-times/mia-liverpool-islamic-centre">Prayer times MIA - Liverpool Islamic Centre</a>