»N/A should not be used for acceleration & sensitivity with a game that has mouse support«
Indeed the guide says this. My mentality behind my actions was, that the game does not offer a mouse by itself and therefore mouseoptions can not exist or at least would have no effect (similar to other rules for n/a settings such as 5.1 for 2D games). Naturally there are settings for acceleration and sensivity, namely in the systemsettings for the operatingsystem.