floodlight cam still poor wifi even with Chime pro

Morning Guys, Having a nightmare with the floodlight cam.. Chime pro is reading -49 which I think is pretty good. However, the floodlight is -71. I cannot move the router, and the chime pro is plugged in as near to the floodlight as possible (on the same internal wall as floodlight) Starting to lose faith in it now, as it stands it's just a very expensive floodlight.. Any help would be much appriciated - I've run out of ideas..