Warning beeps and vibrations on the controller Air2s

[Mr Mint]

I currently fly an Air 2s and I notice when I ascend and move forward at full power in Normal position, the controller beeps rapidly and sometimes it vibrates at the same time. There are no error messages on my cell phone. This seems to happen only when I do this type of action. Is the controller trying to tell me something. Maybe I am too aggressive on the sticks. Other than that warning, everything else is fine. I just don't understand why I don't see a message on my cell phone when the beeping does go off. Anybody else have this false alarm at high speeds without any messages ? Any comment would be appreciated. Thanks Mr Mint