Hello,
The number of DOM elements on your page corresponds to a number of WPBakery elements you use on that page. It means that reducing the number of products, images, menu items, posts and others will reduce the number of DOM elements as well.
We have checked your website performance with GTmetrix and see the following issues:
1. You need to setup CDN
2. Use better JS, CSS and HTML minification. We prefer WP Rocket for these tasks.
3. Reduce images sizes on your home page elements https://gyazo.com/7331a5cf0e31d48f570d9f8d82e88d3a
Kind Regards