Slow motion recording

At times when I review some motion recordings, there are some videos that seem to start with a lag in motion. I will see a still of a person walking by but frozen. A few seconds later, the person is several feet away from having first seen them. Is there a setting that could possibly fix this issue lag issue? It happens with night vision or during daytime.

Most likely it need more cpu power to start. Check the total CPU load in Task Manager so it not up to 100%. In NCS configuration on tab Encoding set number of threads to Automatic. In tab for Recording decrease FPS. Test what works best.
-Henrik