What are the map or performance tradeoffs for using the slider settings?
Well a low setting creates fewer polys. Good, yes can cause problems though. Such as unnecessary overdraw and anything that’s touching that poly (players, monsters, decorations, etc) must be drawn to. A high setting can create too many polys. If those polys are seen from a distance then the person looking could be facing upwards of 200-300 polys. A lower setting would create lower poly count. It also means that the game has more polys to keep track of which the CPU must do the work of in order to keep the game playable. In my opinion, I suggest sticking with the default 15 setting as it is also been optimized for compiling speeds and is generally the best all around.