Hi all I always wanted to know why logic gets so laggy when you have a lot of regions inside the projekt window? I noticed it when i switched from about 7 years from cubase to logic 7 and there has nothing changed since then. This is not a performance problem cause even the fast mac pro has this problem too. I think it has something to do with osx. For example cubase on windows is very snappy, but cubase osx user talk about the same Gui lag problems..