I have configured my Mavic Air video to be 1080p at 50 fps for normal video shots, however, when I use the Quickshot features the video changes it to record at 1080p 29 fps. When I have finished a Quickshot video and return to 'normal'  it records back to the original configuration of 50 fps. Can I change the 'Quickshot' fps speed on my Drone at match my preferred original setup.

I think the quickshot modes have pre-determined settings, which may be unalterable.