The sensitivity in this game is so random you might as well stub your toe on a table and set the sensitivity to the pain rate. Games that have a somewhat predictable range within the smoothing and where the base sensitivity can be reverse-engineered are usually added, but that is not possible for this game. Calculations will have no accuracy, so there's no point in adding them. Ping the devs, it's amazing that they haven't fixed this one line of code yet. There is zero reason to have this smoothing enabled.