This video is recorded entirely with the Panasonic LX100.
I must say that I'm very pleased by the lowlight for a compact camera.

Lumia Light Painting - Tutorial and Lumia Camera Review - YouTube

May I ask what your settings are here

4K, 2K, ISO??

Thanks

4k, iso800, natural with everything at -5 accept saturation which was -3.
IDynamic at standard.