I didn't see that sticker either until I flew it once. Fortunately, I did discover it after that.
BTW, did you say in your first post that you are flying in sports mode? You will get smoother results in the normal "P" mode. Also, there are lots of posts about making slight tweaks to the various acceleration settings for the two joysticks. These tweaks can make both your drone and your gimbal moves much smoother.