Hi, I am A. Stevens here to help with your question!
Depending on your version of Andriod, you may or may not have this setting.
Go to Settings / Motion / Sensitivity settings / Gyroscope calibration
Do you see this on your settings?
If so that should resolve the sensitivity issue..
Please let me know if you do not and we can look for a different setting.
Would doing a factory restore of the device be an option?
You would be able to back up and restore everything on the phone.
Sometimes the software on the phones can "corrupt" and need to be reloaded.
If the recalibration is not doing anything I would suggest this next.
I can send you steps on how to reset?
If you would like.
Do you have a backup of your phone yet?
From a home screen, tap Applications Applications icon (located at the bottom right).Tap Settings.Tap Privacy.Tap Factory data reset.Note To determine if an issue is caused by a third-party app, uncheck Automatic Restore.Tap Reset phone.Note If presented, enter the current passcode or draw the unlock pattern.Tap Erase everything.Note Allow up to 10 minutes for the factory data reset and reboot processes to complete.Note To setup the device after the reset has completed, refer to Initial Activation and Setup.
be sure to backup your phone first..
It will delete this with the reset:
Google accountSystem and app dataApp settingsDownloaded appsMusic, pictures and videos