Downloaded video only shows 8/fps when camera is set to 30 /fps
It is a recording at night from the screenshot you post.
We set it in 8fps in night mode to make sure it can provide clear image.
If the Frame Rate is too high when it is low light, the image would be very dark and pixel.
Also if you need the high Frame Rate in the night mode, you can enter the Advanced settings to set the Exposure to Manual then increase it. Refer to:
It was a night shot that was showing 8/fps. I just checked a day time shot and it shows 30 fps.
Thanks for the info.