Hi Fishbuggy and welcome. I have no knowledge of your set up, but 220kg, sounds way too heavy, if by ball weight, you mean nose weight, I.e the load transferred to the towball. If I am correct, that means you are carrying too much weight forward of the caravan axle, giving it a nose down appearance, and dragging the lc with it. Of course, you could be overloaded in general, I.e too much weight in back of LCD and too much weight for the caravan capacity. Caravan manufacturers leave small margin for all the gear that goes with it.
We all seem to want to take the kitchen sink ! More info may bring a solution.