DIIOP task - how do I tune it?

There is an application that does calls to DIIOP. The application works. It does not crash nor fail in any way. According to the application programmers, though, the performance of this application when it does DIIOP calls, is not very good compared to when HTTP calls are done. I am trying to determine what I need to monitor or stats I need to collect to determine what the problem with DIIOP might be. I haven’t been able to find much on performance and tuning with Domino 6 that explains how the stats collected with the Domino moniotor can be used to evaluate the over peformance of the Domino server, or the performance of one specific task (DIIOP in this case). In other words, I’ve got the performance monitors running, and I’ve got some numbers, but I have no idea what they mean. Any help or suggestions are welcome.

Regards, Derick.