I'm getting very poor performance from OTRS, which I'm narrowing down to it making up to 1000 database requests just to fulfill a simple request. Most of them appear to be related to role<>groups<>users: SELECT ... FROM groups g, group_role gu WHERE g.valid_id IN (1) AND ... gu.permission_key IN ( 'create','rw') AND gu.role_id IN (10) The load is low on both machines, but the latency is killing us. Creating a new ticket is excruciating slow -- up to 10s waiting for the Assignment group / Service popups to fill up once you've selected the ticket type. Any idea how to optimize this? This looks like a rather deep rooted problem. This kind of request could only be optimized, as far as I can tell, by moving the treatment to a stored proc or something. Or am I doing something very wrong? Note: this is 2.4.3 with corresponding ITSM module. I can ditch the ITSM module if needed.