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Plot Performance Improvement

QCustomPlot employs various techniques like adaptive sampling and text object caching in order to cut down the time required to replot. However, some features like complex translucent fills and thick lines can still cause a significant slow down. If you notice this in your application, here are some hints on how to increase replot performance (to benchmark performance, see QCustomPlot::replotTime).

By far the most time is spent in the drawing functions, specifically the drawing of high density graphs and other plottables. For maximum performance, consider the following points: