我可以在EntityFramework中的ObjectSet上使用多少Include以保持性能？我在我的個人資料頁面使用以下LINQ查詢：var userData = from u in db.Users                         .Include("UserSkills.Skill")                         .Include("UserIdeas.IdeaThings")                         .Include("UserInterests.Interest")                         .Include("UserMessengers.Messenger")                         .Include("UserFriends.User.UserSkills.Skill")                         .Include("UserFriends1.User1.UserSkills.Skill")                         .Include("UserFriends.User.UserIdeas")                         .Include("UserFriends1.User1.UserIdeas")                                where u.UserId == userId                               select u;它有一個長對象圖并使用許多包含。它現在運行得很好，但是當網站有很多用戶時，它會影響性能嗎？我應該用其他方式嗎？