Hi @mmazhari,
I hope you are well. Usually, these third-party sites scan and measure the website’s performance with a bot. Moreover, it’s a suggestion. Have you seen the improvement explanation (screenshot)? It’s pointing out the nav menu animations. Not only this but any website in the world will be detected as slow due to animation effects.
It describes some of the CSS property unsupported, but it’s the most commonly used property in the CSS world.
It would be highly appreciated if you kindly specify the matter of How the plugin is not optimized and is not working efficiently with Elementor. Your site performance score is 63% and your structure is 95%! If there are any issues with the SEO/UX and web core vitals, then how the structure is scoring 95%? It doesn’t make sense to me.
Site performance can be optimized in multiple ways. It depends on the Hosting Server, PHP Memory Limit, images, contents, etc. You can learn more from open sources.
If there is anything I missed on your points, advise me, please. We are happy to help.
Regards
Arif