hair will not tween doubled framerate

WendyLuvsCatz

I discovered something interesting about dynamic hair

if you double the framerate after simulation it snaps back on those alternate frames

interesting as I have simulated it at one frame a second without obvious issues rendering 30 FPS

but doing it 30 FPS then rendering 60FPS get a very obvious snapping between frames

seems there is some sort of threshold for tweening

WendyLuvsCatz

a video showing the issue

first and last clip simulated 30fps and slomo rendered at 60fps

yet middle clip 1fps simulation is ok rendered 30fps but of course same duration

seems trying to slow it by doubling framerate is not possible