Attitude gains look quite sporting.

It all depends on your flying style and how you want the aircraft to react. For aerial video then you might want to bring the attitude gains down for a more gentle response to your inputs - or you may be quite happy with how it is set up now.
If you are happy with how it responds to your right stick inputs then I wouldn't change the attitude gains. If you are happy with how the aircraft reacts in GPS hold (i.e. the hover is stable, no oscillations or twitching, etc) then again there's probably no need to change them. If you do, then change one at a time and by 10% at a time, test fly, repeat.