Nice Manfred picture, but lacking sharpness, which is normal considering the shooting conditions.
In this case, I use a method described (with particuar humor by Arnaud Thiry) in this video in French (sorry, the equivalent probably exists in English)
https://www.youtube.com/watch?v=wlIXhWvfqAg.
It works very well, I've experimented it several times with very good results like here
about fifteen photos taken (with a Fuji X-T1) in burst, hand held at 6400 ISO 1/60s f:4 and then processed according to the method described in the video. Noise reduction and sharpness were really improved.