Thank you for the suggestions however the only way I can seam to get a significant improvement in the speed is to disable the main chart, something that I do not want to do. The main chart shows the last 10000 samples acquired on each channel and displays them for the user to monitor. Removing the chart means that the user can no longer monitor the activity on the channels. The chart must be a strip chart as the scope sweep options do not work well.
1) The chart cannot be updated every =91xth=92 loop as spikes in the acquired data channels (a prominent feature of the recordings) will be lost, this is especially true for our timing triggers. 2) The main chart is not set to synchronous display. 3) Auto-scaling must be kept on as the amplitudes of the recorded channels varies greatly. 4) There are some labels that overlap the main chart and removing them does speedup the application but only slightly. 5) The chart is already =91bare bones=92 the data only has lines and no symbols or fills. I did put in a collector and change the chart to sweep but the increase in speed was not great enough to justify the transient artefacts that occurred between the time the acquisition started and the time the display settled down and acted just like a strip chart. I have emailed the application to [EMAIL PROTECTED] as Greg suggested to see if I am missing something. But I am open to any other ideas.
