Graphics vs pictureBox

Hello there. I added two pictureBoxes on my Windows Form. I filled both pictureBoxes with images. I tried to made like pictureBox1 to move. And so I did. But there is a problem. When the pictureBox1 is moving, it seems like it's moving hardly... Like it has ping ^^.

Here is my code:

private void Form2_KeyPress(object sender, KeyPressEventArgs e)
        {
            switch (e.KeyChar)
            {
                case 'w':
                case 'W':
                    pictureBox1.Location = new Point(pictureBox1.Location.X, pictureBox1.Location.Y - 2);
                    break;
                case 's':
                case 'S':
                    pictureBox1.Location = new Point(pictureBox1.Location.X, pictureBox1.Location.Y + 2);
                    break;
                case 'a':
                case 'A':
                    pictureBox1.Location = new Point(pictureBox1.Location.X - 2, pictureBox1.Location.Y);
                    break;
                case 'd':
                case 'D':
                    pictureBox1.Location = new Point(pictureBox1.Location.X + 2, pictureBox1.Location.Y);
                    break;

            }
            Rectangle myRect = new Rectangle(pictureBox1.Location.X, pictureBox1.Location.Y, pictureBox1.Width, pictureBox1.Height);
            Rectangle mySecondRect = new Rectangle(pictureBox2.Location.X, pictureBox2.Location.Y, pictureBox2.Width, pictureBox2.Height);
            if (myRect.IntersectsWith(mySecondRect))
            {
                MessageBox.Show("Congruatiulations!");
            }
        }

Is there any other possibility to move an image? To load the image like a graphic and to move that graphic?