Normally (in SL, and I'm pretty sure in Kitely at some time in the past!) they are at 44 or 45.
As far as I can tell the worlds are all working okay. One rather physics-intensive object (a big dice cup that throws the dice when you touch it) seems to be running sort of slow or jerkily, but maybe it always did and it's just my imagination. But viewer FPS in all these places is nice and high, it's just the SIM and Physics FPS that the viewer is showing as low. (Time dilation is a nice solid 1 in all cases.)
Apparently in Singularity this causes the viewer to show the sim condition as red, and say that the sim is floundering, or other words to that effect.
Is this a known/expected result of some change that was made at some point? I admit I don't have a deep understanding of what those numbers actually mean.

Thanks much!