Datapack to increase world height, but mod changes it to -64

I was wondering if it was possible to create a datapack that overrides a mods generation, I have a mod that is forcing the overworld back to -64, which is an issue. I've written datapacks before that have modified placed features of modded ore and deposits before, despite those being hard coded, could I potentially do the same, and if so how might I go about it?