A large development cannot be treated as one uninterrupted high-detail scene. The site needs a hierarchy that controls what is loaded, visible and interactive at each point.
Architectural variation, planting and navigation should be structured before production begins. This keeps the experience maintainable when the project changes.
The target presentation hardware is part of the design brief. Visual fidelity has value only when the experience remains responsive in the setting where the sales or project team will use it.