Site Speed Front & Backend

Hi WPMUDEV,
Really appreciate your help. We have been developing this site (http://www.aquaowlet.mendingkids.org/) for the past two months and our biggest problem has been site speed & downtime.

We have installed all the proper speed plugins (Autoptomize, Lazy Load, WP Fastest Cache, WP Smush) but still the site is super slow.

We ran a test last night through WPEngine.com and it loaded in 40.9 seconds and rendered in 23.98 seconds! Crazy.

Feels like we have tried everything to fix the issue (even contacting the theme author) but nothing has worked.

We will do whatever it takes to speed it up, just let us know.

Thanks again guys for all of your help,
Luke