Was playing Creative on server with 1.5.2 minecraft version and i'm using the new minecraft launcher 1.1.2 and make new profile and everything fine with 1.6.2 if i play single player or on server with fps but when i play with the new launcher 1.1.2 and make profile for 1.5.2 version of minecraft then my fps is just low as hell goes from 6 fps to 23 fps no higher but normal fps like it was about 60-120 fps and for minecraft version 1.5.2 if i set it full screen on my OSX then the normal fps comes .....