Which Data Source Repository has best performance(PostgreSQL 11, My SQL 8 or Oracle 19c) for Jaspersoft Community Edition 7.8

[m_alazzoni]

We are using Jaspersoft Community Edition (7.3) and Reports are used alot (200,000 Times per Year) since 2018. There is a new project to Upgrade to Jaspersoft Community Edition (7.8) .It will be new Installation on Red Hat 8 OS using Tomcat Application Server.
Jaspersoft Community Edition (7.8) is certified with Data Source Repository(PostgreSQL 11, My SQL 8, Oracle 19c) as mentioned in article (https://docs.tibco.com/pub/js-jrs-ce/7.8.0/doc/pdf/TIB_js-jrs-ce_7.8_Platform-Support-Community-Edition.pdf?id=2 ). Which Data Source Repository has best performance that can handle our Heavy Reports usage (200,000 Times per Year) ? 

[vchiem]

I don't think we can pick a favorite. If all are certified then all are capable data sources. Performance related factors is not just at the dbms layer.