Blink outdoor camera

so I bought these cameras on amazon they where on offer and had decent reviews so I got a 4 camera system I set them up today they are ok but I only seem to get notifications when I’m 6 feet away which isn’t ideal my internet is good so that’s not the problem.i was hoping that it would pick up something as soon as something comes through the front gate which is 20 feet from front door and let’s say i have someone trying to break into the shed it won’t pick them up cus to far away.so basically just wondering if people are having the same problem