We all know Grand Theft Auto IV was a terribly optimized port on PC. Even now, my i7-6700 and GTX 1080ti regularly dips into the mid-30's at 1080p. Mind you, this is using the "Just ENB" mod for 126.96.36.199, but that's besides the point.
I'm just curious if anyone who has fiddled with GTA IV long enough has ever found any mods that actually did improve performance? Bonus points if there are no noticeable visual downgrades or artifacts due to the mod, but hey, even if the mod makes he game look like trash, if it still boosts FPS, I'd like to hear about it.