Jamroom Sites Slow on Dedicated Server
I am having some speed issues with 2 of my sites using Jamroom. All Wordpress sites on my dedicated server load smoothly and have no problems but these two, which are very slow.
This is one using Jamroom: https://gtmetrix.com/reports/sermonescristianos.net/MDoGAgZ4
Also https://developers.google.com/speed/pagespeed/insights/?url=sermonescristianos.net&tab=mobile - (The other is very similar)
And one of my WP sites loading fine: https://gtmetrix.com/reports/vitaminaespiritual.com/x85um66V
I need to know what is causing this, I guess it may be some server side setting? Does any one know where I can start looking to solve this?
Thanks for your help!
updated by @andrusito: 07/18/18 07:15:57AM