Is there a way to lower Initial Resource of trees, mines and others in a Random Map Script ?

I recently entered in the world of map making with RMS. I am trying to recreate the Map "Wood Nothing from AoE 2. So far, it's nearly done, but by testing it, we found the game way too long. With no way to clears more trees other than chopping them, it takes hours for our settlers to create a path to other players.

I want to solve this problems by speeding the cutting process. I was wondering if any of you know if it's possible to reduce the Initial Resources of trees and other. Or if you have better Ideas, I'm open to them.