Hello,
If you want to use Lazy loading for that element and show it quicker with enabled option then contact your hosting provider to reduce the server response time. Because if you enable Lazy loading it means that element is not loaded on the page till you scroll to that section and after that theme makes Ajax requests to your server to get element content. If the server response time is slow then time of element loading is longer. If server response time is quick then you’ll get it almost immediately. We can do nothing with this from theme side.
Regards