By the way, though i didnt link to the mod, for this reason exactly.
Despite the over the top specs that im showing here, Java has a significant limitation to itself.
The mod itself drags out a tops of 15fps from optifine, with my AMD setup tweaked to a max, and a few other shader options toggled into it, (and not to mention AMD Overdrive churning out an extra few MHz, since i overclocked it to see if it affected the speeds and output visually. It didnt btw. Java doesnt often support Muti-core past 4, plus a multicore GPU past 3) The performance would drag other setups on maximum Java commands.