Page take a few seconds before loading full width?

I am working on a client website and noticed that the page I created takes about 1-3 seconds to load the full width content.

https://thefreedomlounge.com/

The website uses Divi themes, and “Intense Shortcodes” plugin to make the sections full width.

I checked out what I can do to make it load faster using the Google PageSpeed Insights. It’s at 87/100, but it is still not loading full width right away.

I optimized the images using WP Smush plugin, and the Lazy Load plugin. It didn’t seem to affect anything according to the Google PageSpeed insights.

Then I followed all these directions on how to optimize the W3 Super Cache plugin:
https://pointblankpro.com/how-properly-configure-w3-total-cache/

And also how to remove and render blocking javascript and css in WordPress, since that is one of the things PageSpeed insights said to try:
https://pointblankpro.com/remove-render-blocking-javascript-and-css-wordpress/

Still no luck. It’s almost like the problem has to do with how the shortcodes are setup within the page, but I really just don’t know anymore.

Thanks in advance!