I started on this map.
This is my first map of the new update.
I'm loading my existing save.
Danger 3 Cultists with really high crime (around 64% I think) and I think the Wealth was High too.
Moving the camera around is jerky. A bit stuttery. I thought it might have been the fire barrel after I moved the camera far left and it became smooth.
My theory became void when I panned up and to the right and there were two fire barrels and it was still panning smoothly.
When I came back around to where my characters were, it started shuddering again.
I have a pretty decent system, so unless those characters have a million polys each, I don't think it's the characters. Also... unless I'm completely nuts, I don't recall the camera being stuttery previously.
Here's the map and the part of the screen that's jerky when moving the camera: