Im not sure that this would be considered as a bug or rather performance issue. Since i started playing this mod in 2012 i've experienced a small stutter every second ingame. Note that it is not a constant low framerate which is usually at about 50 fps when at sea. The stuttering is only at sea and occurs at exact intervals of about a second, the stutter itself is a frame drop that lasts only a hundred of a second maybe? It is anyway to short for Fraps to even notice while showing the framerate. This may very well be caused by my outdated computer, radeon 4850 hd, AMD phenom II quad core 2.6 Ghz, 4 gb ram. However i think this is a strange problem even if it is because of bad performance and i have never experienced it in another game.