Orthanc uses a lot of RAM (Windows Server 2016)

Good afternoon!

Please clarify why the Orthanc can use a large amount of RAM, how can you understand what this process is loading? The Orthanc takes a very long time to process. What can affect the Orthanc so much?

OS - Windows Server 2016.
Database - PosgreSQL

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First of all, you should analyze your logs in verbose mode to know what Orthanc is doing when the load is high: https://book.orthanc-server.com/faq/log.html#under-windows