Warband is already legendary for running on a potato. You can play it on an Intel integrated GPU from 2008. So, why compress it further?
Mount & Blade: Warband is naturally a small game, with the original installation being around 800 MB to 1 GB mount and blade warband highly compressed better
is already an exceptionally small game by modern standards, typically requiring only of available hard drive space for the base installation Why Compressed Versions Might Not Be "Better" Warband is already legendary for running on a potato