If possible, could someone from the Apple community please tell me if Yosemite will be faster / lighter than snow leopard? I don't want an OS that requires 8 gigs of ram to run "fast" like Mavericks requires.
Seriously, what is slow about Mavericks? Your experience sounds psychosomatic: "this is newer, it's probably slower."
It came down to: "This OS has no mention of speed, so it's probably slower." which turned out to be quite true out my five friends who have upgraded to Mavericks using 2010 equipment.