What difference between GS CMS and WP?

[Timer]

I'm a newcomer.  I haven't used the GS CMS yet. I always use the Wordpress to build my website.

I think the google very like the WP sites. I can edit my website with Fusion Builder. It is one plugin of Avada theme. 

But there is a serious problem about WP sites. They have many js in the site code. The js makes website open very slowly. I hate that.

So, could you tell me what advantages about GS CMS? I really want to try this new CMS.