On the last few flights, the live view from camara to my iPhone has been frezzing (lagging) then catches up......... I noticed I had auido recording that I hadn't noticed before, I shut that off on menu and lowered my cache and it is still happening?????? Any Help would greatly be appreciated.

Audio recording is a low lift for iOS devices, and lowering the cache would more likely cause performance problems than solve them because the system would have to expend resources clearing the cache more often.

Next time it happens pay attention to the signal level and antenna orientation relative to the AC's position, you may have something between you and the AC that is blocking signal.

I had this and found putting transmission to HD or Smooth fixed the issue, also make sure you are in airplane mode so there is no interference, hope it gets better