Ring doorbell 2nd generation

I have just purchased a ring doorbell 2nd Gen. My car is at the side of my door so I have put it on an angle and it is now in perfect view of my bell. I have set it up so i have covered all zones and tried to put it on high frequency for motion alerts but I’m not getting them much at all as people and cars go past. For security at the moment I want every motion detected but it doesn’t seem to be picking much up. I’m guessing this is in the settings but I’ve altered everything I can see. Has anyone any ideas? Thank you.