I see a fair number of people complaining about Mavericks' speed, so I'm throwing my $0.02 in (why not, everyone else is!).
I updated my early 2011 13" MacBook Pro (4 GB RAM) to Mavericks, and for the first hour or so... what a dog! It was just unbelievably, painfully, slow. But, eventually, all the background re-indexing and compression finished - now it's running fine.
Some people are responding to complainers with a knee-jerk "you should always do a clean install". Honestly, you should almost never have to do that with any modern OS under normal circumstances; but saying that seems to be the latest iteration of sage advice like "rebuild your desktop" or "repair permissions". 😀
Just upgrade to Mavericks, be patient, and everything will likely be fine.
I updated my early 2011 13" MacBook Pro (4 GB RAM) to Mavericks, and for the first hour or so... what a dog! It was just unbelievably, painfully, slow. But, eventually, all the background re-indexing and compression finished - now it's running fine.
Some people are responding to complainers with a knee-jerk "you should always do a clean install". Honestly, you should almost never have to do that with any modern OS under normal circumstances; but saying that seems to be the latest iteration of sage advice like "rebuild your desktop" or "repair permissions". 😀
Just upgrade to Mavericks, be patient, and everything will likely be fine.