New Post: Poor performance get EntityState

Hello,

Recently we moved our big project from EF6.0.2 ObjectContext to EF6.0.2 DbContext.
And noticed poor performance of getting entity state after loading large set of data.

Example: we have several tables

-Category (100 items)
--Elements (1000 items)
--Validity (1 item)
--Activities (50 items)
.....

This code is quick (5ms):
var category = context.Categories.First();
var state = context.Entry(category).State;

But after loading all references getting the state takes more then 2 seconds:

[Pseudocode]

var category = context.Categories.Include("..").Include("..").Last();
var state = context.Entry(category).State;