How to increase the performance for login response - asp.net-mvc

Question

I am working on one MVC application. After clicking on login button it is taking me almost 7 second to redirect on home page which is not a good response time as per performance. Please help me how to make response time better.
Below is my controller code.
public ActionResult UserLogIn(Models.LogIn user)
{
if (ModelState.IsValid)
{
if (IsValid(user.User_Id, user.User_Password))
{
using (var db = new CopaRuleContext())
{
var ApproveUsers = db.tbl_User.Where(u => u.User_Approved == "Yes" && u.User_Id == user.User_Id).ToList();
var UserDetails = db.tbl_User.FirstOrDefault(u => u.User_Id == user.User_Id);
string UserRole = UserDetails.User_Role;
if (UserRole != null)
{
Session["UserRole"] = UserDetails.User_Role;
}
var rolename = db.tbl_Roles.FirstOrDefault(u => u.Role_Name == UserRole);
if (rolename != null)
{
Session["RoleName"] = rolename.Role_Description;
}
var firstname = UserDetails.User_First_Name;
var lastname = UserDetails.User_Last_Name;
firstname = firstname.Substring(0, 1).ToUpper() + firstname.Substring(1).ToLower();
lastname = lastname.Substring(0, 1).ToUpper() + lastname.Substring(1).ToLower();
Session["UserName"] = firstname + ' ' + lastname;
Session["UserId"] = UserDetails.User_Id;
if (ApproveUsers != null && ApproveUsers.Count() > 0)
{
if (UserDetails.User_Is_Deleted != 1)
{
Session["Process"] = "PP";
if (UserRole == "Role-1")
{
FormsAuthentication.SetAuthCookie(user.User_Id, false);
return RedirectToAction("Notification", "Inbox");
}
else if (UserRole == "Role-2")
{
FormsAuthentication.SetAuthCookie(user.User_Id, false);
return RedirectToAction("Clear", "Clear");
}
if (UserRole == "Role-3")
{
FormsAuthentication.SetAuthCookie(user.User_Id, false);
return RedirectToAction("Notification", "Inbox");
}
if (UserRole == "Role-4")
{
FormsAuthentication.SetAuthCookie(user.User_Id, false);
return RedirectToAction("Notification", "Inbox");
}
}
}
}
}
}
return View(user);
}

Answer 1

I was having problem with password encryption. I was using salt hash technique to encrypt the password which was affecting the performance of login. I have changed it with SHA1 encryption and performance has became incredibly fast.