Ram management of kitkat sucks topic

guys
this phone can't handle facebook + launcher only opened ?
a galaxy star phone would do it better
even my 500 MB ram old phone is much more better than this
i don't have anything opened
just launcher and i get only 200 mb left of ram ?
if i opened any application it just redraws the launcher when i get out and it's very slow to get out of an application
what the **** ?
any solution would be appreciated very much
and rom would be appreciated too