Hello,

I have visited your website and all the categories have added icons.

Screenshot for Clarification: https://prnt.sc/x6voxo

It seems that you have managed to fix it.

2) In general, our theme is already optimized and doesn’t have too many resources to make your website slow. Most likely, your website performance suffers from the content you have added to your website. It may happen in case of too many plugins, large not optimized images, or other resources. So we suggest you remove unnecessary plugins, install some kind of JS & CSS optimizing plugins like Better WordPress Minify, and a caching plugin like WP Super Cache. Also, you can use the GTmetrix tool to see what makes your website slow and optimize these parts of your website.

Best Regards.