I've been hunting a tower stand overlooking a food plot and watched deer walk right in front of my GardePros and they didn't trigger.
Some of the missed triggering often has to do with "recovery" time between triggerings.
Recovery time is how long the cam is non-functional after it triggers on an event. This is not to be confused with a chosen "delay" setting. You might have a cam set to "delay" anywhere from a few seconds to minutes, between triggering events.
"Recovery" time is added to that chosen "delay".
Cheaper cams tend to have longer "recovery" times.
Since this thread is about the new Browning, Trail Cam Pro's analysis claims it has a "recovery" time (for pics) of 1.1 seconds. So if you had your "delay" between potential triggerings set for 15 seconds, it would really be 16.1 seconds of non-working after something triggered your cam.
As a comparison, TCP rated the GardePro's T5CF cam to have a "recovery" time of 2.0 seconds.
Then, there is also the actual "trigger speed" which is how fast the cam will actually trigger a pic when something moves in front of the sensor. That GardePro T5CF is rated at 0.5 seconds. So, if you had your "delay" set for 15 seconds, you would need to add 0.5 for triggering time + 2.0 seconds for recovery time = a minimum "down" time of 17.5 seconds after something trips the sensor to trigger.
By comparison, the Browning's trigger time is 0.02 seconds, considerably quicker than the GardePro (along with Browning's 1.1 second recovery time).
Different Brands & Different Models within brands can vary greatly on trigger speeds & recovery times.
The Reconyx Hyperfire 4k Ultra HD has a trigger speed of 0.25 seconds & a recovery time of 2.2 seconds. Surprisingly, the new Browning is beating this Reconyx on these two parameters!
Looking at a few other brands & models:
Tactacam Reveal Pro 3.0
Trigger Time = 0.38 seconds Recovery time = 21.1 seconds
(Not a mistake. Recovery time is 21.1 seconds.)
Set this cam on a 10-second delay, and your "down" time exceeds 30 seconds.
Stealth Cam Fusion Max 2.0
Trigger Time = 0.26 seconds Recovery time = 18.5 seconds
Bushnell Core DS 4k No Glow
Trigger Time = 0.15 seconds Recovery time = 0.7 seconds
Really fast recovery time.
Spypoint Flex Dark
Trigger Time = 0.37 seconds Recovery time = 3.6 seconds
All above regarding cams set to "pics".
If set in video mode, can be major differences in recovery times.