Keycloak super slow

Hi there,
I just setup keycloak in docker with mariadb on host and apache2. I can reach and interact with keycloak but there some request (I see no pattern) take 2.1 min. Besides that everything is working.

I can’t find any clue in the logs. I raised the max. memory limit to 1G and mapped the docker random to /dev/urandom.

Do you have any advice what to do / test next?