Hi all. I have a radjet 800 from hobbyking. I have fitted a 2836 3000kv propdrive motor, 80 amp esc and 2200 4 cell 70c lipo running a 4.75x4.75 prop. The motor gets very hot and im only getting 3 mins flight time before the lipo has 10% left. Am I doing something wrong. Should I use a smaller prop? Any help would be great.