I had a dig through that patch to see, but nothing (in the help file at least) jumps around nearly as dramatically. This all stays in a range but then has wild spikes in there, with nothing else but this patch going on.
It’s not doing nothing (fluid.bufspectralshape~ → fluid.bufstats~), but it’s not a lot nor is there anything else going on in Max at the time.
edit:
I mean, I’m not asking for a lot. I just want the perfect information, with zero latency (as a compromise from “negative latency”), with zero CPU usage…