QChart::QLineSeries cpu performance

[sitesv]

Hello!
QLineSeries...
Timer is using for redrawing. Timer interval is 200 ms...
1024 points...
opengl is enabled...
CPU utilizations is 7% (core i7 4 cores/8 threads)... It's it too much. Is it?

[A.A.SEZEN]

500 point x 42 series ~2500 ms cpu %0.2 - %1.2 ... and more process. AMD Ryzen 7 pro 4750u..
These drawings go through many calculations beforehand. The CPU is already used in those processes.
You may need to focus on the preprocessing, not the drawing.

[sitesv]

I just made a test without calculations... Just draw rand() or const values...