MariaDB is slower than Postgresql?

Hi,

We’ve made some DB comparison last year with Orthanc 1.4.1 and we also observed this kind of ratio (https://bitbucket.org/sjodogne/orthanc-tests/src/default/PerfsDb/Results/history.txt)

We’ve not repeated the tests with latest Orthanc but we may expect the same ratios now since nothing has been done to improve specifically MariaDb over PostgreSQL.