So after my goal post incident it seems the only issue I have is horrible Horizon Tilt! I have adjusted it in settings to -4.8 but when its flying it goes tilted again and takes ages to level out! Sometimes I have to bank the drone to help it out.
I have reflashed firmware & calibrated the IMU

I dont know what else I can do now

Umm fly like that or send it in for repairs.................

I have seen your other report too. It is quite obvious that the gimbal got damaged with the crash and needs repair/replacement.

Sorry to hear the crash. In this case, I suggest sending the drone back. Please fill in some info on our online repair link and send it back, we will help to take care of the drone.