Repost but with a change, it's 1 second faster for each loop
Had to get rid of the logic gate that was used as delay buffer between the two adc's. The logic gates in EC are actually analogue devices, and adds an overhead to the sim calculations. The rest of the timers and shift registers EC does simpler calculations, and so are much faster so it seems
Have replaced the logic gate delay buffer with a duplicate of the timing clocks, but with a 2% delay
Compare the scrolling speed to the original and see what I mean (speed improvement due to removal of one logic gate!) ...
http://everycircuit.com/circuit/4584266642751488