That looks slightly better but I don't think the cables are your problem.It could just be less windy but I put a piece of foam on top of the gimbal loosely just to see if it worked similar to this video: so that the hdmi cable would touch that and it's a lot smoother so I may put a more permanent piece of foam.
Maybe I will try and strip the wire since that seems to be the problem.
What about the gimbal data wire also?