I have converted the files I had in FLAC to DSD128, the change is remarkable and the program handles them much better. Better sound quality and new nuances that now appear on the scene, the dynamics are much higher. I started with DSD64 and have already noticed the change quite a bit. I tried with DSD 128 and noticed slight improvements, then I tried to pass them to DSD256 and it seemed that the file was very heavy, I could no longer notice any difference. Maybe you need a stereo superior to the one I have or maybe there is no more increase in quality.
That is why I recommend converting the files from FLAC to DSD128,
Tunebrowser does wonders with them.