downgrade from Mavericks to lion on retina macbook without any backups
hey guys i upgraded to OS X MAVERICKS from OS X Mountain Lion on my macbook pro retina early 2013 model . there is no problem as such but for users like me small things matter a lot. Like for example its taking more time to startup now although its fast and as soon as the wallpaper loads up on the startup there is a lag which is clearly not be mentioned but this is my " problem" and i want it to be sloved if possible .
secondly i dont have any backups or time machine thing as i have no knowledge about that as i'm a new user guys.
i dont mind a clean reinstall but from what is saw on recovery option is that the reinstall will be os x mavericks only.
so guys is there any way my retina can go back to the factory condition as i dont like the new one and i want my previous os installed.
thank u
MacBook Pro with Retina display, OS X Mountain Lion (10.8.4)