Expanding a simple word generator

Hi, everybody.
At first really sorry for my english.

Secondly my knowledge of jitter is not so good and i'm just a lonely beginner in a world of video processing with max.

Below is part of my previously made patch, which were generating random words by MIDI notes. The full patch were made of 6 matrices like one below with gated counter connected with them, to make possible a some kind of polyphony word generation.
The problem were, that 6 instances of this generator is very CPU hungry. Well the question is, may be there is much more simple and less hungry way to make a polyphony generation of words using one LCD or matrix?

Any help will be very thankful! Even simple phrase where to search!