Improve performance on Entity Framework Code-First
Code-First can run into some serious performance issues with LazyLoading. I would like to see Code-First (and its lazy loading feature) as a viable option for developing high performance web applications.
Rowan Miller commented
We are continually working to improve the performance of Entity Framework, we recently released Beta 2 of EF6 which includes some big performance improvements - http://blogs.msdn.com/b/adonet/archive/2012/12/10/ef6-alpha-2-available-on-nuget.aspx.
If you have particular scenarios that you want to see improved then feel free to log a detailed report in our public issue tracker - http://entityframework.codeplex.com/WorkItem/Create.