I am developing a Qt application that requires visualizations of very large data sets. I was hoping to use Qt's 3D graphing functionality (Q3DBars) to make the data more easily understood. However, I am having difficulty getting a reasonable framerate. 
I have done the below in hopes that the framerate would improve. No effect.
bars.setReflection(false);
bars.setReflectivity(false);
bars.setOptimizationHints(...::QAbstract3DGraph::OptimizationHint::OptimizationStatic);
bars.setShadowQuality(QAbstract3DGraph::ShadowQuality::ShadowQualityNone);
bars.setSurfaceType(QSurface::OpenGLSurface);
I have a GTX1080 and windows records 40% GPU usage as I rotate the graph. However, the CPU is loaded significantly during the same rotation.
What can be done to further offload work to the GPU and/or optimize the rendering?
After playing with the other 3D graph classes, I have discovered that Q3DSurface runs smoothly with the same data set. I am unsure what the specific difference is but I suspect the surface is rendered in a vastly different way. Initially, the image looked unclear.
However, after disabling the wireframe the image became very clear.