I have to fix my Mum's Mac Mini which is running super slow, but I know if I format and reinstall I'm going to cop hell because everything will be "different" (apparently Safari is "everything" and it has to be kept as is). I don't really want to keep it as is because it doesn't even look like Safari does on my iMac. So what can I do to refresh the Mac, get it close to stock and hopefully running fast but keep Safari as is?
