Entity Framework edmx click on diagram very slow

Question

Background first: I have a database-first EF6 model in Visual Studio 2015 (latest nuget 6.1.3 pointing to a local SQL Server 2014 SP1 Express database) on a Windows 10 Pro lapto

Answer 1

if you have installed the extension productivity power tools, then disable it before you start to work with entityframework diagrams, then inable it when your done. i dont get into my entityframework diagrams very often, so this worked for me.