Performance fps and ms

Hi, I’m new and have a question I can’t find out after playing a longer time with sandcastle.
How can the Performance in fps and ms can be shown like in the CesiumViewer example, that means without Primitives, Frustums, Terrain etc.
I’ve tried

viewer.cesiumInspector.viewModel.performance = true;
viewer.cesiumInspector.viewModel.dropDownVisible = false;

But that does not give the result like in Cesium Viewer.

Try viewer.scene.debugShowFramesPerSecond = true;

Thanks Sean, thats it.