Not very familar with different video settings on Mavic  Air .
Wondered what settings I could try for recording a golf swing whilst practising ....would give best slo -mo effect ?
Have nd filters coming tomorrow can experiment with cutting exposure etc
Any suggestions or perhaps not suitable for this type of activity ?!!

ISO 100
Shutter at 1/240th  
FHD at 120p
Use whatever ND is required to gain these settings whilst keeping the exposure value between -0.7 and 0 - use the histogram to perfect the exposure
Keep the drone about 5-10m away from you and a few metres off the ground. Don't point the drone directly at the sun behind you.

Hi there, kindly check this thread (https://forum.dji.com/thread-133763-1-1.html). I hope this will help.