Review your model and remove objects or uncheck items you don’t need to simulate for:
Remove complicated objects that don’t directly affect daylight
Examples include: railings on roofs, detailed road labels, ground vegetation, furniture and other systems - fire sprinklers, locks on doors, etc.
If there are complicated objects that do affect daylight (e.g. complex shading systems), simplify them as much as possible, and make sure they are modeled as a single object (not thousands of individual pieces)
Turn off grids or layers you don’t need In LightStanza
Check “Grids” panel- turn off illuminance grids you don’t need (i.e. parking garage layers, higher floors) - you can sort the spaces by area to see the largest offenders
Check “Layers” panel and uncheck any layers you don’t need to simulate for
If using Revit, under Account Settings > Preferences - ensure “Automatic Family Filtering for Revit Models” is checked. Automatically filter out any extraneous Revit families. Removing these can improve performance and speed in the LightStanza 3D viewer and in simulations