RAW/CR2 image preview "tile" effect
Hi there. I'm getting into using RAW rather than JPEG in photography and I noticed that when I preview images by pressing space bar on them in Finder, they open and a moment later, the appearance of the image changes - usually it becomes more contrasty, less hazy.
It looks like Preview is processing the image divided into tiles, first the bottom row, then the top row.
When I open the image in Affinity Photo, it automatically looks like that more contrasty version.
Opened in XnViewMP it always looks like what Preview shows in the first moment.
Can anyone explain what's happening here?
Is this some sort of lens correction?