roundcube started running very slow. It started yesterday. I'm running Ubuntu server 16.04. apache, mariadb, postfix, dovecot installed with your HOWTO. Can you give me any idea what could be the problem or where to look for the problem? It's running on php 7.0. One of the hosted pages started to run slow as well. The site uses Zend framework. But they are using different php.ini files. Roundcube uses /etc/php/7.0/cgi/php.ini The other site /etc/php/7.0/apache2/php.ini and it's using Fast-CGI. Can Fast-CGI be the problem? when loading sites that run on php 7.0 the php-cgi uses a lot of resurces it's at the top of the top command.