If you have performance issues and support contract then open a PMR on it and it will be investigated.
Although your only profiling the startup and shutdown times. I am curious how frequently you would do that? My start up/shut down times are not as slow as yours but I probably have a better spec machine (they are slow, but within an acceptable limit).
What is the performance like actually using the product? I personally don't have any serious issues there.
In regards to start up eclipse is registering all the plugins it uses. You can disable a number of these if you don't use them to speed up time. For example integrated Sametime, Activities (if you don't have activities server set up). Also check to see if you have the client replicating on startup/shutdown as that would slow it down as well.
Also make sure you are not doing something like "-clean" in the command line.
Feedback response number WEBB7BPDMX created by Simon ODoherty on 02/10/2008