Music Timeline Inaccurate

I am running Roon on my Mac Pro to a Squeezelite Pi, all works great. On my iPad 4 Mini the “music playing” timeline (not sure what else to call it) is about 2 seconds slow. I would have expected it to be ahead of the actual music output if the Squeezelite were buffering and accurate if there isn’t any buffering.

No big deal but a little odd.

AKA: https://dev.roonlabs.com/portal/issues/10157

It seems to be getting more extreme, since I first reported it.