Hi Anja,
Welcome to MSDN Forum.
Please be patient with Entity Framework, it is still on the way. We should believe it will be better and better. EF5.0 will be released in the near future, it is improved and performs better, but the feature requests are too many, product team may can't
meet all demands at once. So, please be patient with it and surport it. Thanks!
Best Regards
Allen Li [MSFT]
MSDN Community Support | Feedback to us
