FacetChart blinks and resources for MS Internet Explorer

[bnagwt]

Hi!

This is maybe a browser problem. There is a timer in our test case based on Scatter Plot Showcase for frequently updating FacetChart data using setData(). And there is a randomizing by data generation to show updates.

a) The chart blinks in the browser IE. Is there any setting to avoid this, please?
b) It needs essentially more CPU resources for IE, than other browsers (GC, FF). Can it be reduced, please?

//Test Case 2 data
final ScatterPlotChartData data = new ScatterPlotChartData();
Timer timer = new Timer() {
	@Override
	public void run() {
		chart.setData(data.getData());
	}
};
timer.scheduleRepeating(500);

public ScatterPlotChartData[] getData() {
	final Random rand = new Random();
	final float x = 5.0f + rand.nextFloat();
. . .
}

These aren’t exactly values, but one can see the main browser differences by two test computers:
Laptop 2.7GHz 4virtual cores: FF 6%, GC 4%, IE 25% (other similar scatter chart tested)
Desktop 2,93GHh i7 CPU: FF 3%, GC 2%, IE 9% (above test case)

GC Version 31.0.1650.63 m
FF Version 25.0.1
IE Version 9.0.8112.16421 Update: 9.0.13

Enterprise Trial Version:
SmartGWT Version: 4.0p BuildDate: Mon Dec 02 19:51:00 CET 2013

Regards
Béla