In context, I would expect "performance" to refer to how quickly a scene can be rendered, and another buzzword, "scalable", to refer to the size and complexity

In context, I would expect "performance" to refer to how quickly a scene can be rendered, and another buzzword, "scalable", to refer to the size and complexity of scenes that can be drawn. "Beautiful" probably means "lots of detail and snazzy effects." Actually, the article says "scalable across platforms", which is confusing to me. Maybe they mean scalable to different screen sizes?