It’s installed but not activated on our german page, just on our english one. I asked the one who had the page before me about that plugin some weeks ago and just forgot to also deactivate it on the english page. Discourse is just connected to our german page where it is not activated. So I guess it doesn’t has a function atm.
I really wish I would have more of an idea of all these things, as I also experience the wordpress being very slow from time to time and I don’t really get behind all these stuff from just reading around in the internet.
Just to clarify: I’m talking mainly about miasanrot.de / miasanrot.com is not connected to discourse. So this site is working with the normal comment system of Wordpress.