Face and person detection with Deepstack - local and free!

The way I use deepstack (and tensorflow) in HA is to use my cameras to detect motion and then call the image processing service via an automation.
I have never tried to do detection continuously. I think that would be quite a load on the computer that deepstack is running on. Not even sure this is made for or capable of that.
Sound more like you want to check out a couple other threads on image processing:

And yeah POE cams are wired and therefore better performance than wifi cams. Keeping as much wired as possible is the recommended method.