/\ You need to clean your caches. CM5.0.8 and CM6 have been fast as fuck to me. Also go into recovery menu and wipe the dalvik cache.
im guessing that the latest google apps such as maps, which when updated, actually take more space up on the phone memory. to confirm, i have allowed apps2sd on the rom.
Right, but for those that want the latest and greatest and betas and all, rooting helps them get the custom ROMs for 2.2 and Gingerbread (eventually) without having to sit there and wonder if their carrier will ever have it for their phones. I guess it won't be an issue for 3.0 for the Galaxy but after that, they won't have to wonder if they'll ever be OTAd ever again. Cyanogen will have them covered.