Making your own copy of the modules is a really good thing. When Vizzie was created, the basic idea was to leave room for such customization while making something that lots of people who were averse to anything like patching could make reasonable use of.
One of the interesting things that has not occurred to some users who've decided to radically alter the resolution of their objects is that it'll have an effect on throughput. I would never assume that you are necessarily someone who would not think of this, of course. But keep in mind that if you double the resolution of any jit.matrix object (e.g. from 320x240 to 640.480), you're actually processing 4 times as much data (and HD rez is more than that, etc.).