...but just about everything is shyte. That's just a fact.
People don't care if what they make has good performance. They just tell you to buy a faster, more powerful system, which is rubbish. I occasionally do that too, but it's very minimal, and only because when things I make demand something faster/better/newer, it's faster/better/newer than ten-plus years ol; and then only because whatever I'm using as a base requires it, with all my modifications pushing it to its limits.
I'm not about to go back to doing things in raw assembly though.
To clarify my earlier question: How many other objects do NPCs examine to gauge interaction, their movement, and such? Do they consider other NPCs as a factor, as that is something that I would expect to cause exponential performance hindrance.