The game is advertised and sold as having split screen co-op. Having to mess with console settings to get it to work and the resulting experience being shit isn't excusable. Of course I didn't expect a full PC equivalent but I expected it to have a minimum of polish and optimization.

If they couldn't make the game do split screen decently, they shouldn't put that as a feature. If the game can't be run decently in single player, they shouldn't have sold it at all.