R1M camera lag too much

I use R1M camera with latest firmware from October 22, I check latency as follows, I point the camera at the monitor with a stopwatch so that I can see the mk32 display through it, then I take a photo, the difference between the stopwatch on the monitor and on the mk32 is on average 350ms, according to the documentation it should be about 150ms, what could be the problem? Sorry for the errors in the text, I use a translator