Wordpress sometimes very slow, sometimes very fast

Question

First time using Wordpress, I always used Drupal. I have installed WP on several VPS from several vendors. One with FreeBSD 10.1, 3 with Centos 7. All using MySQL and PHP 5.4 or PHP 5.6.

I'm using Xcache and mod_deflate . On the same VPS PHP apps like Drupal and ownCloud are running fine and responding very fast ( <400ms ), no matter how many times you load the page.

My problem with Wordpress is that the first time you load the website on a PC it takes about 20-30 seconds to load. After this it loads under 200ms . I'm using the default theme and no plugins, since I first want to solve the slowness.

IMO plugins like " WP Super Cache " won't help since it's a clean install on a clean VPS. Without content, without plugins etc.

I have tried many things which doesn't work. Directly accessing the VPS by IP doesn't change anything.

Answer 1

Check the page speed from: http://tools.pingdom.com/fpt/

To be sure its not your connection / computer

If its still that slow:

Try using an Ubuntu 14.04, then install Sentora as your host panel.

From there do all the necessary configurations (edit DNS records at your registrar etc)

Then install wordpress with remote.softaculous.com, then you should be good to go.