ORIGINAL: CGRetired
If you have a computer radio, set in some exponential. Start with 20% and go from there. That's negative expo, by the way. This will soften the controls for the small inputs and may help out. If you have a computer radio with a graphics display (like a Spektrum), then the screen should look something like the picture below.
CGr.
Futaba sets exponential with negative value. JR sets expo with positive.
Those values give the increased accuracy that comes from more precise control around neutral. And give the lessened sensitivity around neutral that make most airplanes easier to fly.