Both numbers were from rend2 - one before my change, one after. Szico made the Atlantica map so I trust he vis'd the map properly Using vanilla, the FPS is about 60 FPS. The way I'm tackling the problem now is to disable all the extra fancy features of rend2 and try and bring Atlantica up to 120FPS. Then I'll re-enable one thing at a time and do some more optimizations to keep it above that number. If 120FPS is too much, then I might drop it down to 90FPS as my target. I'm testing this on a fairly old card (4 or 5 year old AMD Radeon GPU) so anyone with a newer card should in most cases get better performance.