Hi there,
To add on to what David said, increasing the memory of the service_host probe might improve performance.
In IM, open the raw configure menu (Ctrl + Right Click) and check on the java settings.
The default is:
-Xms64m -Xmx128m
You can try changing this to the following:
-Xms1024m -Xmx2048m
Make sure that the server is able to adequately provide the memory you configure.
Phil