OpenFileDialog/c# slow on any file. better solution?

I am opening a file using the OpenFileDialog in c# and I am noticing it is taking between 20-40 seconds to load my file and clear the dialog.

Here is my sample code:

private void btnOpen_Click(object sender, EventArgs e)
{
    if (ofdSettings.ShowDialog() == DialogResult.OK)
    {
         // do nothing
    } 
}

even with this limited example it takes the 20-40 second duration for the dialog to clear. the file i'm selecting is a xml file that is only 1.36kb large