I'm using iMAC i7 CPU processor with 24GB RAM Memory and 1TB Harddisk (system: OSX Mavericks), I also did softwares updates on both the iMAC OSX Mavericks and the Photoshop CS6, unfortunately the lag problem is still torturing me everyday.
Adobe never solve this Photoshop CS6 lagging issue, they let it go on forever without any solutions, Adobe are you listening ??