Help - Floodlight Settings

Been in my new house about 3 months, bought four Floodlight/V3s. I can’t seem to find the sweet spot to setup motion detected by PIR/Camera/Sound.

Sometimes they come on when a bug or a spider is going by, other times they come on for no apparent reason. We had a bear walk around the house last Sunday at about 10:45, the bear was only picked up by 2 of three camera and she was within 10-feet of the house. If anyone has any recommendations please let me know.
Thank you!