I have a mini 4. I am having trouble with over heating. I am getting what looks like video lag. But the end results is perfect. Being I film action videos I can't afford the glitches. I fly a p3S & p4. I use a shield that I blame it on. I live in Fla. Today it flickered all of the shoot, I lowered the resolution, didn't help. Any idea how I can keep it cool?