I have a high ttfb on a virtual windows 2012 Server together with Joomla.
It is working well with JIRA and other web projects. Only joomla has a very high ttfb.
I made a fresh test joomla installation and on each request, it takes 1.5 seconds ttfb, where it looks like, the server is just waiting. If a joomla user is logged in, it is even worse.
I saw other joomla sites which are much faster, so it is possible. I also tried with nginx, but it is also waiting for more than 1 second, doing nothing.
When cached, it is fast. But if a joomla user is logged in, the website is per design (joomla) created dynamically.
Target is to find the reason for this high ttfb, so it can be fixed. It need somehow to be related to the server i think. Like it is resolving hostname/IP or other things.
Maybe, installation of server tracing SW is needed.
This should be easy to solve by experienced person. It has to be some setting/configuration.
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