Check the mount
A lens aimed at a road, a moving tree, a flag, or a neighbor’s yard will treat wind and headlights as events.
Use the PIR install article, change tilt and direction, then watch it for a day.
Then the app
Drop detection sensitivity one step instead of muting all alerts.
If the model has activity zones, draw only the door or path, not the whole street.
Insects, rain, and headlights at night can add alerts. Adjust the aim and the sensitivity first.