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The PS3 version of the game has some issues with lag (loading), although most of this was rectified with version 1.4 of the [[Skyrim:Patch|Official Skyrim Patch]]. It was widely reported on Bethsoft's Official Forums and across a large number of reputable Gaming Websites, IGN, Gamespot, CVG, etc, that the lag problem was bad enough to "stop or badly affect gameplay" with a large number of players save games becoming frozen upon loading, as well as a whole host of other bugs and issues both pre-existing and caused by the patches made to the game. Bethesda stated that patch 1.2 would focus on these performance problems, but the patch didn't help at all. Afterwards, Bethesda stated that patch 1.4 would get rid of the PS3 lag.
Patch version 1.5 introduced a major game-crashing glitch connected with the improved water shaders. After installation of the patch, any attempt to go underwater would result in the game crashing. The solution to this is to delete all Skyrim data (Update and Game) in the Game Data Utility. This does not affect or include your save game data. Then reinstall the game data and then the patch updates. The glitch is only present if, when updating, you have not yet downloaded patch 1.5.