Slow down the scrolling speed oscilloscope display?

[mehmethand]

This code is working, but I want to slow down scrolling speed. How I can I do this?

const var Oscillator = Synth.getEffect("Oscillator");

const var dps = Synth.getDisplayBufferSource("Oscillator");

const var vp = dps.getDisplayBuffer(0);

const var properties = {
    "BufferLength":65536,
    "NumChannels": 2
};
vp.setRingBufferProperties(properties);

visualPanel.startTimer(50);

visualPanel.setTimerCallback(function()
{

		this.data.p = vp.createPath(
					    this.getLocalBounds(10),
					    [0, -1, -1.0, 1.0],
					    0.0 
					  );
		this.repaint();
		
});


visualPanel.setPaintRoutine(function(g)
{
	g.setColour(Colours.white);

	if(isDefined(this.data.p))
		g.fillPath(this.data.p, this.getLocalBounds(10));
});