@PrestaHeroes USAeven tho we've purchased the paid version of the module, we still need to purchase another modules from you, is that correct?
- JavaPro Remove PrestaShop JavaScript Render Blocking: $100.00
- Front End .css Performance One .css CCC all Shop Pages: $50.00
- cssPro - Eliminate .css Render Blocking with Preload: $90.00
Please note, it is a paid plugin and not for free.
We use elementor on Wordpress (Free version) but the paid version we can add custom CSS & JS. We don't have to pay for Elementor PRO alone and JS/CSS render blocking for more than 200 USD to only add that custom field.