HEIC/HEIF files created by x-t50 open slowly on Mac Photos?

[Tvir]

I liked to know if there is any wider knowledge on the functionality of heic/heif files created by Fujifilm cameras on the Mac Photos app. The point is that heic files created by iPhone open fast with Mac Photos but those created by x-t50 need some 6-7 sec to get rendered fully. That makes the use of heic files created by x-t50 bad. As pointed out above, the files created by iPhone do open fast, perhaps slightly slower than jpg files but anyway fast enough. What's interesting, the Fujifilm heic files do open fast when opened at Finder, "the system level". So, my conclusion is that the delay in rendering Fujifilm heic files is related to the performance of the Photos app. Comments? And is there any remedy for this drawback???

[Greybeard]

I have no answer but HEIC files do open in Photos much slower than RAF files even with a fast M4 pro chip.

The M4 iPad pro doesn't appear to have the same problem.

[Tvir]

That's sad if one needs to use jpg files to work with x-t50 pictures on Mac Photos, as they are much bigger than heic files.