Performance when switching from LiveCharts to LiveCharts2

[TokumitsuMakoto]

I'm using LiveCharts with WPF on .NET Framework. Plotting 2,000 points × 10 series takes nearly 100 seconds, so I'm looking for ways to improve performance.

If I switch from LiveCharts to LiveCharts2, will performance improve?

If the paid edition of LiveCharts2 would improve performance, please tell me how to purchase a license.

[dgkorenje]

It won't improve. Around 5k points is a limit. Even if they're out of visual scope, the chart will work slow. So you need to dynamically add and remove points if you plan on scrolling through timeline.

[dgkorenje]

I didn't check the source code, but apparently the more points you have, slower it gets. Smells of O(n^2) downgrade. Mr. Rodrigez should check this. A lot of stuff could be set for O(1) or O(n) as datetimeaxis that are interval based and sorted don't require checking whole data set.

Edit: I noticed if you have custom visuals it will start to work really slow. Without custom drawing you can get fairly smooth canvas, but as soon as you show one visual, it will process exponentially slower. I tried with integrated linevisual and it doesn't harm charts as much as custom linevisual. There must be something to it.
Without any visuals I can get 15000 points to show with a bit of stuttering. With 1 visual I get smooth operation at up to 2000 points, then at 6000 points it's so bad. CPU core becomes overloaded and update is once per second.

[rubiomiguel06]

what do you mean precisely when you say Visuals? Which property?

[dgkorenje]

If you add custom visuals, such as lines, text etc... But under the hood there appears to be a lot of problems. With 15000 points, just having them is consuming CPU, not to mention hovering despite all tooptips disabled or hovering disabled. Maybe I am missing something, but I don't think so.