It's most likely a Mac thing. And is probably the main reason I gave up on OS X as a serious work OS, since I'm so dependent on Emacs (org-mode in particular).

It's most likely a Mac thing. And is probably the main reason I gave up on OS X as a serious work OS, since I'm so dependent on Emacs (org-mode in particular). I hope it gets sorted one day. Apparently it has to do with certain system calls on OS X just being very slow.