I use Freichat Basic version on Joomla 2.5.28 since Nov. 2015. It seems that when it's activated it creates huge traffic on the server. For example the normal traffic of the site is around 1Mb and with Freichat is increased to 30-40Mb.
I have set it up to be visible only to Registered users which means around 300 max at a given time which is not a big number I guess.
How can I find what the problem is?