How can i load items back to the listView control from text file and also add checkBoxes near each item faster?

In this method i'm reading a text file from my hard disk and add the items to the listView.

I also changed in the form1 designer on the listView propeties the property CheckBoxes to true.

Now when i'm running my program it's taking like 10-15 seconds to load it up all.

The form1 constructor:

LoadtoListView();

And the method LoadtoListView:

private void LoadtoListView()
        {
            int countit = 0;
            using (StreamReader sr = new StreamReader(@"c:\listviewfile\databaseEN.txt"))
            {
                while (-1 < sr.Peek())
                {
                    try
                    {
                        string name = sr.ReadLine();
                        string email = sr.ReadLine();
                        var lvi = new ListViewItem(name.Substring(name.IndexOf(":") + 1));
                        lvi.SubItems.Add(email.Substring(email.IndexOf(":") + 1));
                        listView1.Items.Add(lvi);
                        countit++;
                    }
                    catch (Exception) { }
                }
                sr.Close();
                numberofforums = countit;
            }
        }

There are 547 items to load and 547 checkBoxes.

I tested now if i change in the designer the listView property of the CheckBoxes to false again it will load fast about 1-2 seconds.

But once i'm turning this property of the CheckBoxes to true it's tkaing more then 10-15 seconds to load.

I guess the problem is that it's taking time to draw all the CheckBoxes.

Is there any way to make it all faster ?