I think the difference in experiences is due to HD vs SSD. I've found Apple's latest OS's seem to do terrible with spinning disks. Thankfully all my machines ar

I think the difference in experiences is due to HD vs SSD. I've found Apple's latest OS's seem to do terrible with spinning disks. Thankfully all my machines are SSD, but I've seen a few Mac Minis with HDs that are really slow whereas the same machine with an SSD is fine.