Spotlight cam plus - motion not accurate

Hi all, I installed the wireless spotlight cam plus recently. There are a couple of issues with motion sensing on it: 1. The camera picks up people outside the area I have set. It shows a record in the history and you can clearly see it's someone outside the motion area. Is there a way to deal with this and stop false detections? 2. The spotlight comes on at different times to the motion sensing, and seemingly much more often. It could be picking up in the same area as the motion for the video recording, or perhaps it works on a different sensor? Is anyone is able to help with these 2 queries that would be great. Thanks.