monetxxx on "[Plugin: WP Super Cache] Extremely slow even after install and configuration"

Hi there,

I've been doing a lot of research to get the best configuration, all seems good. If I "test the cache" all is green.

However the results and site are still slow (8 second average)

At the bottom of the pages I see this:
"
<!-- Dynamic page generated in 1.296 seconds. -->
<!-- Cached page generated by WP-Super-Cache on 2016-07-27 16:36:04 -->

<!-- Compression = gzip -->"

That's it... then checking in gtmextrix I get this:
http://gabrielfariasiribarren.com/cache-example.png

So I am not sure if it is working or what I am doing wrong.

Any ideas o suggestion?

Thank in advance!

Here is the site:
http://gabrielfariasiribarren.com/

https://wordpress.org/plugins/wp-super-cache/