Its the RFS. Apparantly the facebook application has quite a bit more I/O operations than other applications. At first I thought the facebook software was not mature/behind the curve compared to other devices. After applying RyanZA's OCLF, the facebook application went from unusable to really good. Just sharing what I have learned. Samsung really gimped the phone with RFS. I wonder if a future ROM will forgo RFS for something more with the times.