Poor Detection Range

Recentl;y purchased a stick-up battery ring camera. I have it outside looking up the drive at our two cars. It's at a height of rought 8-9ft (cant go higher without going a lot higher due to house layout).One main concern I have is that the detection range is very poor 10-15ft. I thought they were supposed to be atleast 30ft. I have looked at the motion settings and the only options I get are zones and sensitivity. However some help articles show a range slides. I dont get this.Any thoughts?