I have a question regarding the reduced sensitivity of sensors under low light intensity. I noticed from the datasheet that a higher contrast change is required to generate an event under low light intensity. However, it seems that the same absolute value of intensity change would cause a greater degree of contrast variation under low light conditions. Does this mean that in fact there isn't much difference in sensitivity between the two situations?

Could you clarify if my understanding is correct or if there are other factors at play that I might be overlooking?