plotting time for stacked chart Vs normal chart

[Indus]

Hi,
Why is updating data on a stacked waveform chart with 4-plots slower than updating data to four different charts ?
Is it advisable to avoid using stacked charts?

[JRA]

I was not aware that it was slower. It could be that, by trying to plot all four at one time, you are putting the processor through more work as opposed to updating four charts at different times. Even if they seem to update at the same time, they could not technically do this because execution would only run one at a time. Just a thought...