I can tell you, the more features, customization, player count, optimization, and individual player performance are all factors. Many old & current NW players have potato computers for NW ( its engine also runs on a potato ) so the developers did note this. Although I don't want to be this to be a setback for the development. Its not really the developers problem that they cant make content because of player specs. Optimization is a different factor that devs need attention to because in most cases the performance would be wasted on some stupid bug, rather then actual content.