It is not null, I'll tell ya. It's a bit of a tradeoff between cpu cycles and ability to do actual tasks.
You can't really investigate much a server with it unless you're investigating a machine in a cluster from a main broker because the panel can and will get sluggish to navigate(there's no good alternative to physical access or ssh in extreme cases), but hey, at least it won't drop you easily, because the frontend responds well to high latency.