For shots like this I would take about 5 or 10 images one after another then stack them in Affinity Photo or Photoshop and use the Mean(Average) option. Most of that noise would go and then you have some really good noise reduction software to finish remaining noise (Nik Define, Topaz Denoise AI or Topaz Gigapixel) these can really transform Mini images.
Some of my Mini Drone shots are on this page.
LATEST IMAGES | New Zealand | Andrew Busst | Landscape Photography
I'm really into this conversation about the Mini camera quality compared to the
Air 2. Nobody has showed me that the image quality for stills is that much different, panoramas and HDR you can do manually with the Mini and using something like Topaz Gigapixel gives you similar results as the 48MP option IMHO.
I would really like to see a drone by drone comparison of the same scene to look at image quality. Of course
MP2 is in a different league.
Cheers