Thank you for your reply. The only factor I suspect could be the number of data plots. In this particular case, this number is close to 1600. Is there a limit to the number of data plots? If you have some automated tests on the charts, can you run one with different settings for the number of data plots and see the difference. There are times when it takes close to 20 seconds (1600 data plots), which is like an eternity of silence when you are doing a demo. And I suspect not all points are shown. Hope to hear back on this.