It all depends on what you're looking for, high cpu usage I indicates that a lot of processing power is used in that proc/verb. High real-time can indicate hang ups in the code. Either can indicate 'lag'. The ideal situation results in the lowest cpu usage, lowest time, and least calls. Calling the procs less and making the code more efficient results in the best performance. Of course, things like saving tend to take a good deal of cpu and time. It's necessary to make these calls frequently, so optimizing and finding where and when you should call it would make things run smoother. It's hard to cause lag through even sub-par code on games that don't usually gain more than a dozen or two players on any decent machine. Another big cause in 'lag' is the connection speed of the server, limiting the upload/down of the host's broadband could make things smoother, as would increasing the speeds of the connection. Most modern server providers have 100mbps up/down rates for that very reason.
Sorry it took so long for someone to help you.