how to prevent loading child form when MDI form loads

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C#

Hi Friends,

I have an MDI form with ToolStripMenuItem . on the click event of menu items i am initializing a form to load.
The problem i am facing is, since i have lot of menus in the MDI its taking too much time to load MDI.
When i put debug point on the form load event of MDI i realize its going through each and every form.
So how can i prevent this situation.
Please help.

private void headsEntryToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Frm_head head = new Frm_head();
            head.MdiParent = this;
            head.Show();
        }