Several ChartViews and animations.
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Qt 5.13.2.
Recently I encountered this problem when using several ChartView in one window: even the simplest animation running in this window causes a load on one processor core of up to 100%. Here are my observations: if there is only one ChartView in the window, then any animations (NumberAnimation, ScrollView scrolling) have almost no effect on the load (~2 GHz on the processor). It is worth adding 1 more, the frequency grows to 4.7, which is the maximum for my processor, and one core is loaded to 100%. It is enough to add
ChartView{}
ChartView{}
for this problem to occur. I would like to understand why this is happening. I hope someone knows the solution to this issue.