How can I reduce the amount of mineral veins on the map ?

[Djak]

I feel like the main reason late game becomes so easy is that there are far too many mineral veins on the map. Is there a way to reduce the amount of mineral veins on the map ?

I am using nitrogen map generator.

 

[alphaniner]

I think things like ore nodes and veins are generated during runtime based on biomes.xml.