happydesk

Exactly not. I’m using Elementor on my lot of site. All of my site optimized and non optimized load within 3 seconds.

You can do a test on fresh wordpress install with Elementor. Your using Siteground which quite good hosting.

I suggest you to use any cache plugin like W3 total cache, WP Super cache or WP fastest cache or WP rocket (Paid).

Thanks!