Ciao @mcogoni,
Interesting.
What Fuji camera are you using?
Personally, I do not think that ISO 3200 is especially “high”
when it comes to X-trans. (My old EOS 600D is much, much
worse, noise-wise.)
Have you also tested X-trans ISO 12800, 25600, or…?
Have fun!
Claes in Lund, Sweden