I ran into this issue as well.
I believe this is happening because scene objects (which is where the camera lives) are updated before entities. It was causing horrible stutter for me when my design resolution was set to something low (480x360)
I scaled everything up 3x and am now running at a higher design resolution of 1920x1080 and the stuttering is gone.
I’m not sure how to fix the stutter in row resolution without serious modification to the way Nez does rendering internally. I’m not sure if the above solution of rounding the position up will work well on a tiled map following a character who is moving via the tiledmap function… but if someone gets that (or anything) fully working I’d love to read about it.