With the latest RCP build of today, the JMX tree is reacting much faster, and its an enjoyment to use now. However the Profiles View is still slow. We have a JIRA ticket about that. The reason is that its most likely using a fine grained API to gather the data. I have added a method on the FMC facade to get all the data in 1 JMX operation. I think we should fix this, to make it go fast like the other views. You can see its really slow, for example by just scrolling its scroll-bars. It takes a bit to update the screen after scrolling. And the scrollbar dont react immediately. Unlikes the Processors view, where you can press mouse down, and move the scrollbar back/forth and it updates the screen immediately.