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Using 3.10.1, (cannot upgrade at present due to issues cited in http://forum.fusioncharts.com/topic/17496-issues-with-upgrading-from-3101-to-3110/) We are trying to render a chart with 3600 points per series with multiple series as a line connecting the points, with anchors not visible at first but visible when hovered over and with tooltips displayed. With drawAnchors=1 the charts are taking greater than a minute to load but with drawAnchors=0 they take less than 10 seconds. The performance of drawAnchors=0 is ok but this does not allow for tooltips to be displayed to the user. We have tried using msline2d and scrollline2d, but noticed even worse performance. We cannot use zoomscatter as in 3.10.1 drawLines is not present for that chart. (cannot upgrade due to issues cited in above post). Can you suggest any ways to achieve better load times with tooltips enabled? Attached is a sample of the data we are trying to display, (drawAnchors=0 is set) json-unformatted.txt

Hi folks, We recently upgraded our Flash-based FusionCharts to JS-only (version 3.4). Our clients have noticed a slowdown in chart rendering speed, and we're looking for ways to improve performance. We regularly request large amounts of data at a time (up to 5 years of daily data), so the slowness is most noticeable on these large date ranges. We noticed that one way to cut down chart rendering time considerably is to set drawAnchors = 0. This speeds up chart rendering significantly (from 7 to 2 seconds, for example). Right now, we're drawing anchors, but setting them to transparent so we can use tooltips. We can't lose the tooltip functionality, so I'm wondering if either of the following is possible: 1) Is there a way to include tooltips without drawing the anchors? 2) If not, is there any way to split the chart rendering into stages? E.g., draw the chart first without anchors, and then later render the anchors and tooltips? Any other performance improvement ideas you have would definitely be welcome, too. Thanks!

Hi, I am using a licensed version of Fusion Charts (v3.1.1) for rendering a scatter chart with plot points of around 20,000. This is taking about 30-40sec purely on the browser side with flash disabled. With Flash turned on, it's taking even longer. The performance is consistently slow across 3 browsers (chrome, Firefox and Safari). On profiling, I noticed that multiple JavaScripts in the FusionChart.HC.js file are slow. Is there an upper limit on the amount of data that a scatter chart can handle? Is there any other way to improve the performance? Thanks!