Is there any way that using a keyboard you can emulate pushing the anolog stick a little bit. Maybe a different input plugin? I know it was posible in UltraHLE using the shift key.
<about nrage's plugin>
you can change the range by going into the plugin's settings.
to change it ingame, u hav to make a movement modifier, also in the plugin's settings(go in the input's plugin settings dammit!).