It seems like the maximum forward speed of the drone (in normal mode) decreases markedly when the gimbal is pointed straight down. Is this just me imagining things or is this a real phenomenon? If it's real, is it due to wind resistance or something? (That'd really be something such a small change in a control surface caused that much additional drag, but perhaps with a drone this small being aerodynamic is more important). Or does it limit forward speed because the drone is trying not to tilt forward as much in order to effect the straight down view? (Presumably this could be compensated for just by auto-panning the gimbal up a bit?)