I have P3, and Yes, the connection with Lichi is very bad sometimes. It seems to be better with Dream Flights, but anyway I do not feel safe while flying. You are lucky the camera is not damaged. Hope, DJI Go will add more flying modes in future.
For FPV you may use another App instead of Litchi. Some of them are expensive (like Dream Flights Buy Dream Flights app or bundle with VR glasses), some are free. You can look them up are App store. They all are 3rd parry Apps, so the drone will be crashed/damaged and DJi will found that it was...
Compare to Litchi and Dream Flights what are advantages of VR Drone? I use only DJI Go and really confused. Why should I purchase/download something else if DJi offers App?