Ghostmaster, well 100mbps in the panasonic lx100 is overkill, but yes, you are right. Having a higher bitrate is good for capturing action. The Sony DSLR cameras
that have AVCHD or X-AVCS (sony a5100, a6000), max out at (I think) 30mbps but if you use X-AVCS you get 50mbps, but that is more than enough. As for 4k video
well that might require higher bitrates.
But I would expect a actioncam to at lest be able to do about 25mbps on 1080p at lest in a medium setting, with the option to bump that up to
about about 35mpbs if that is possible or a bit higher, so you can use that for the clips where you need extreme high bit rate because of some
crazy fast moving action . I do not know the maximum bit rate of the NT96600 that is used in the gitup2.