We recommend that you assign a unique player name for yourself. Your player name will be shown in multiplayer mode. If the username already exists, you can't login to the multiplayer server.
You can setup your individual rate / expo values in the menu or you can also adjust your settings while you are flying. The little quadcopter in the bottom right will react immediately to your changes.
If the quadcopter is too aggressive, choose a higher expo value on the given axis.
In this section, you can choose the camera angle. I'm using 20° and FOV of 80.
If you have open a track, you can setup up you quadcopter dimensions. It's recommend to use an angle > 45°.
A good value is -100%+ (e.g. -108%).
This value defines the air resistance.