Contribution d'origine par : August Williams ,
I had this problem when I upgraded my Mac Mini with an SSD. Mine was also a clean install. But I grabbed everything back over from Time Machine, so my Mac was just like it was before. Despite everything being "fresh" with a super speedy SSD, some tasks ran unusually slow. The fix that worked for me was verifying and repairing permissions. This can be done through Disk Utility.