I really have a big problem with crystal XI. When i write code setdatasource from  .net to crystal XI , it really slow to set .... i don't know why.

         Dim DA As New SqlDataAdapter("SELECT * FROM  REGISTER_PAYMENT
                                                                       order by invno", GCnn)
            Dim DS As New DataSet
            Dim RPT As New RptSaleRegisterwithPayment
            Try
                DA.Fill(DS)
                If DS.Tables(0).Rows.Count = 0 Then
                    Dim MSG As New FrmMessageOK
                    MSG.LBLENG.Text = "No Invoice Transaction!"
                    MSG.ShowDialog()
                    Me.Cursor = Cursors.Default
                    Exit Sub
                End If
                RPT.SetDataSource(DS.Tables(0))   ' it is very slow when i this statement
                RPT.SetParameterValue("DATE", "FROM " & Format(cash_in, "dd-MM-yyyy hh:mm tt") & " TO " & Format(Now, "dd-MM-yyyy hh:mm tt"))
                showREPORT(RPT)
                RPT.Close()
                RPT.Dispose()
            Catch ex As Exception
                MsgBox(ex.Message)
            End Try

Have anybody can help me ?
i hope to hear a best solution soon...
thank you for everyone who read my problem.