VB.Net - Loading large amounts of data into a combobox.

Hello,
I have a VB.Net application in which I have several comboboxes on a form that contain a large about of data, about 13,000 rows each.  The query which retrieves the data is very fast.  Here is an example of my code that populates  8 combo boxes.
 
dsDxs = cCSharedFunction.getDx()
dsDX1 = dsDxs.Copy()
dsDX2 = dsDxs.Copy()
dsDX3 = dsDxs.Copy()
dsDX4 = dsDxs.Copy()

With UcDx1.cmbDX1
            .DataSource = dsDX1.Tables(0)
            .DisplayMember = "Dx"
            .ValueMember = "Description"
End With

With UcDx1.cmbDX1Desc
            .DataSource = dsDX1.Tables(0)
            .DisplayMember = "Description"
            .ValueMember = "Dx"
End With

With UcDx1.cmbDX2
            .DataSource = dsDX2.Tables(0)
            .DisplayMember = "Dx"
            .ValueMember = "Description"
End With

With UcDx1.cmbDX2Desc
            .DataSource = dsDX2.Tables(0)
            .DisplayMember = "Description"
            .ValueMember = "Dx"
End With

With UcDx1.cmbDX3
            .DataSource = dsDX3.Tables(0)
            .DisplayMember = "Dx"
            .ValueMember = "Description"
End With

With UcDx1.cmbDX3Desc
            .DataSource = dsDX3.Tables(0)
            .DisplayMember = "Description"
            .ValueMember = "Dx"
End With

With UcDx1.cmbDX4
            .DataSource = dsDX4.Tables(0)
            .DisplayMember = "Dx"
            .ValueMember = "Description"
End With

With UcDx1.cmbDX4Desc
            .DataSource = dsDX4.Tables(0)
            .DisplayMember = "Description"
            .ValueMember = "Dx"
End With

Any help to speed up the load of these controls would be greatly appreciated.

Thanks in advance.