Hardwired doorbell cam alerts triggering from outside zones

Hi all. I’m having an issue with my doorbell recognizing and sending alerts for just about every car that drives by, despite the motion zones only being the porch. The flag moving doesn’t generally set it off , but most walkers and vehicles driving by set it off. My sensitivity setting is at the lowest. I do not have a ring subscription as I already have security cams that record locally. I have noticed this has gotten worse in the last 3 or so months. Worked great at the initial install for a while. Now it’s just getting really annoying. I do want to know when someone is on the porch so don’t want to turn off motion recognition