Not sure what the best way to do this is:
On audio mixers it is usually High -> Low top to bottom. On audio mixers it is Low -> High if left to right.
Low -> High or 0 -> 2 is the most logical in terms of the correct order for both vertical and horizontal in an effect in Resolume because of the values of each item. However, because it is an audio effect and audio mixers use High -> Low, maybe this changes things.
Another question, If the parameters of the effect were displayed horizontally would this change the order?