[2005] Finding The Datagridview Alternative?

I have an existing invoice module that displays its items in datagridview. The datagridview also contains DataGridViewComboBoxColumn. The problem with the datagridviewcomboboxcolumn is that it has too many records which results to performance problems. And the datagridview itself poses some performance problems dealing with the data.

An idea is playing in my mind to redesign the module, and i want to ask some of your suggestions on other alternatives for datagridview that can display and handle many records at the same time and can handle each row that has datagridviewcomboboxcolumn with also many records.To illustrate concretely, the datagridviewcomboboxcolumn contains the Product Items and the datagridview itself contains records and details such as quantity, rate, total amount of the product item selected.