Except your eyebrows because then you would look like a tool.' That means there is absolutely no graphical disadvantages in anyway and the performance is astounding in comparison to other available shader mods.
The easiest way of looking at the optimisation is 'Pluck all the hairs from your body to minimise drag before you go competitive swimming. These shaders also give a higher-frame rate than vanilla and much higher than Sky4CE's shader mod. It is a compilation of effects from EVERY shader mod and has been insanely optimised to give improved performance. This is basically the ultimate shader mod.