Poor performance when Camera is close to Surface

Hunterm522

I've noticed that my app's performance drops dramatically (<30fps) when the user navigates the Camera close to the ground/surface. This is much more apparent on 4K monitors which both of my dev machines use. I am measuring the FPS of the entire ApplicationWindow. This can be replicated with the Display a scene sample (doesn't matter if CPP or QML). Having the camera close to the surface is important for my use case (e.g. camera represents aircraft position & orientation).

Notes:

• Surface::setNavigationConstraint(NavigationConstraint::None)
  • I notice this does improve the performance a little but then I start seeing tile edge artifacts
• Using a TransformationMatrixCameraController and using setClippingDistance()
  • No effect at various clipping distances
• Don't add a Surface to the Scene
  • Resolves issue, buttery smooth 60fps...but I need the elevation Surface...
• Playing with the atmosphere effects, lighting, etc.
  • No effect

My system specs:

• CPU:  AMD Ryzen 9 5950X
• GPU: Nvidia GTX 1080Ti, other dev machine has a GTX 3090
• 64GB RAM
• 4K monitor
• ArcGIS Qt 200.2.0
• Qt 6.5.2
• Manjaro Linux
• Nvidia driver 535.113.01