Bonita 5.10.2 - Slow and High CPU Usage


we have an old Bonita 5.10.2 Open Solution Community Edition, with about 1000 active cases, running on a Tomcat server.

Such cases have active timers to send weekly notifications reminders to users.

In the last year we have noted an abnormal CPU usage of the Bonita Tomcat task, it is always (24h/day) at 15% of CPU and the system is very slow when creating new cases.

We have searched for the cause and, on the SQL Server database , on the table "bonita_journal", there is a lot of requests about "timers"