Screen recording needs a performance boost.

I'm using robot to capture my screen in "real-time" and only able to
pull about 12fps, does anyone know how to improve the fps? Is the
while loop slowing it down?

long t0 = System.currentTimeMillis();
            int i = 0;
            int fps = 0;

            while (true) {
                i++;
                long t1 = System.currentTimeMillis();
                int seconds = (int) (t1-t0)/1000;

                try{
                    fps = i / seconds;
                    this.setTitle("FPS: " + fps);
                }
                catch( Exception e){
                    this.setTitle("FPS: " + fps);
                }

                Image screen_capture = new java.awt.Robot()
                        .createScreenCapture(new Rectangle(Toolkit
                        .getDefaultToolkit().getScreenSize()))
                        .getScaledInstance(Toolkit.getDefaultToolkit()
                        .getScreenSize().width / 2, Toolkit
                        .getDefaultToolkit().getScreenSize()
                        .height / 2, Image.SCALE_FAST);

                jLabel1.setIcon(new ImageIcon(screen_capture));
                jLabel1.update(jLabel1.getGraphics());
            }

Any help or idea's is appreciated.