@Owen now there is a dedicated thread for the Tuya driver :
One of the addition in the latest version is that the sensitivity parameter, as returned from the device is shown in the Current States :
This is the actual sensitivity value, as returned by the device itself.
Let me know if your sensors are returning back the configured sensitivity or not.
You need to activate the vibration sensor at the same time when you click on the 'Save Preferences' button.