winForm dataGridView performance issue

public delegate void UpdateDataTblDel(MyMsgType msgType, MyData data);

public class Main: Form
{ 
   MyDataFeed dataFeed = new MyDataFeed();
   DataTable dataTbl = new DataTable();

   public Main()
   {
     Init();
     
     CreateColumns();

     dataFeed.Data += new DataEvntHndlr(DataHandler);
   }
   
   private void CreateColumns()
   {
      DataColumn col;

      col = new DataColumn("ID");
      col.DataType = System.Interger;
      dataTbl.Columns.Add(col);

      col = new DataColumn("Price");
      col.DataType = System.Double;
      dataTable.Columns.Add(col);
      
      DataColumn[] primaryKey = new DataColumn[1];
      primaryKey[0] = dataTbl.Columns["ID"];
      dataTbl.PrimaryKey = primaryKey;
   }

   private void DataHandler(MyMsgType msgType, MyData data)
   {
      this.BeginInvoke(new UpdateDataTblDel(UpdateDataTbl), new object[] {msgType, data});
   }

   private void UpdateDataTbl(MyMsgType msgType, MyData data)
   {
      DataRow row = null;
      
      row = dataTbl.Rows.Find(data.ID);
      
      if (row == null)
      {
          row = dataTbl.NewRow();
          row["ID"] = data.ID;
          row["Price"] = data.Price;
 
          dataTbl.Add(row);
      }
      else
      {
         if(msgType == MyMsgType.Remove)
         {
            row.Delete();
         }
         else
         {
            row["Price"] = data.Price;
         }
      }
   }

   private void button_Click(object sender, EventArgs e)
   {
      View view = new View(dataTbl);
      view.Show();
   }
}

public Enum MyMsgType
{
   Remove,
   Add,
   Update
}

public class MyData
{
   public double Price;
   public int    ID;

   public MyData(double price, int id)
   {
      Price = price;
      ID = id;
   }
}

public class View : Form
{
   public View(DataTable dataTbl)
   {
      Init();

      dataGridView.DataSource = dataTbl;
   }
}