C# Dynamically Creating Checkboxes is too slow

I am currently creating a permission form in Windows C# and the purpose of this screen is to have a matrix of checkboxes, column being each userGroup and row being each report.

I have designed the screen, creating dynamically as many checkboxes as userGroups x reports. However the time it takes to load the screen is very slow. (Around 400 checkboxes currently)

Here is my code:

        Label lblU;
        Label lblR;
        Label line;           

        for (int u = 0; u < userGroups.Count; u++)
        {
            lblU = new Label();
            ...
            lblU.Location = new Point(60 + (u * 100) , 10);
            this.Controls.Add(lblU);
        }

        for (int r = 0; r < allReports.Count; r++)
        {
            lblR = new Label();
            ...
            lblR.Location = new Point(10, 60 + (r * 80));
            this.Controls.Add(lblR);
        }

        for (int r = 0; r < allReports.Count; r++)
        {
            line = new Label();
            ...
            line.Location = new Point(10, 40 + (r * 80));
            this.Controls.Add(line);
        }

        CheckBox box;
        for (int u = 0; u < userGroups.Count; u++)
        {
            for (int r = 0; r < allReports.Count; r++)
            {
                box = new CheckBox();
                ...
                box.Location = new Point((u * 100) + 60, 60 + ((r * 80) + 25));
                this.Controls.Add(box);
            }
        }

I tried other controls, such as CheckedListBox, but they couldn't achieve what I want e.g. there are no functionality in CheckedListBox to separate checkboxes as I want per column.

What is the most efficient way to cut down on loading time?

PS: I am also having Infragistics controls 14.2