I’ve been struggling with the same thing.
You can change the fader behaviour with logarithmic and exponential functions in a script, but that messes with the displayed value in relation to the parameter value. I’m thinking that the fader template itself will need some scripting to scale the values and control movement.
In electronics there are logarithmic and audio taper potentiometers, which will be the way to go. My math skills are limited though, so making sense of the formulas is a bit of a chore.