You can also go through with the below link for some more insight information and I hope this will add a bit more in the collection of capabilities points.
Could you shed some light on what is the challenge you're facing in the performance management domain - then it would be much easier to give a meaningful answer. Even high-level would help.
Knowing pretty much everything about potentially every client-server information exchange on the network, DC RUM can tell a lot about application and client location activities. DC RUM's decode-based analysis reconstructs in real time how client and server exchange app-specific data and thus is able to measure app-level performance and network quality influence to the user experience. But also has fundamental limitations, like no way to look into transaction execution within the server (and thus no way to tell why server response time was long).