TL; DR: I want two IR-triggered cameras to catch moar coyotes.

I have two cheap Reolink RLC-410 cameras looking up and down the equestrian trail at the back border to my property. Click here to stand approximately where Wile E. is standing in the above photo, and then pan around to see the red dots where the cameras are currently mounted. I have a string of outdoor-rated Cat5e running to each camera, because I'm too far away from the main house for WiFi to be reliable, and there's no other source of power anywhere close.
Sometimes the cameras work fine, and the image-based motion trigger catches the action, like this horse and rider:

Other times one or both cameras will just miss the action entirely, for reasons unknown. For example the "uphill" camera caught the coyote as shown above, but the "downhill" camera did not trigger. I don't think it's a matter of sensitivity, as I've caught lots of other events on this camera; it's just intermittent.
I also have problems with swaying trees triggering the motion capture.
Finally, I've been unhappy with the Reolink cameras, because the RTSP streams stutter in low light. In this video the left side is the native Reolink client, and the right side is VLC playing back the RSTP stream.
So I'm thinking I'd want to use a PIR sensor to detect the presence of any warm body, be it human, horse, or coyote, and then trigger both cameras to record for X seconds. Wyze has such a feature in its little $20 cameras and Wyze Sense Kit, but it doesn't actually work all that well, and I can't use WiFi cameras in this location.
Any suggestions? Thanks!

I have two cheap Reolink RLC-410 cameras looking up and down the equestrian trail at the back border to my property. Click here to stand approximately where Wile E. is standing in the above photo, and then pan around to see the red dots where the cameras are currently mounted. I have a string of outdoor-rated Cat5e running to each camera, because I'm too far away from the main house for WiFi to be reliable, and there's no other source of power anywhere close.
Sometimes the cameras work fine, and the image-based motion trigger catches the action, like this horse and rider:

Other times one or both cameras will just miss the action entirely, for reasons unknown. For example the "uphill" camera caught the coyote as shown above, but the "downhill" camera did not trigger. I don't think it's a matter of sensitivity, as I've caught lots of other events on this camera; it's just intermittent.
I also have problems with swaying trees triggering the motion capture.
Finally, I've been unhappy with the Reolink cameras, because the RTSP streams stutter in low light. In this video the left side is the native Reolink client, and the right side is VLC playing back the RSTP stream.
So I'm thinking I'd want to use a PIR sensor to detect the presence of any warm body, be it human, horse, or coyote, and then trigger both cameras to record for X seconds. Wyze has such a feature in its little $20 cameras and Wyze Sense Kit, but it doesn't actually work all that well, and I can't use WiFi cameras in this location.
Any suggestions? Thanks!