Switched to Cloudways but still getting a slow initial server load speed.

Hi there, as suggested by this article I signed up for cloudways to get the fastest speeds possible on my website:

http://realtyengine.co/

https://premium.wpmudev.org/blog/faster-with-cloudways-wpmu-dev/

however based on my discussion with their tech support, they are asking me to turn on Varnish setting which only the W3totalcache plugin seems to have.

When I use Hummingbird, the server initial load times are 1.5 seconds + which is pretty peculiar.

I want to end up using only hummingbird as the article suggests, but their tech support insist on using W3total cache and I am just not getting the speeds I was expecting.

All the images and Javscript I can deal with later, but the initial load speeds of the website are pretty bad when I end up using the hummingbird option:

https://tools.pingdom.com/#!/bsI5n2/http://realtyengine.co

http://screencast.com/t/afgVTlnVKI13

thank you