User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-67.187.183.112-20120912002828/@comment-3472264-20120915133434

@Zelron That could happen but more often than not it's a bug caused by the unique properties of that weapon. I also highly doubt that a couple of weapons are causing lag that makes the game unplayable. It's more than likely the same thing that caused Skyrim to lag for the PS3, Bethesda does not know how to code for the PS3.