Some thoughts tha that might be helpful- you are probably doing some of these already

1) Try running the antenna outside the plane - Just to see if range improves or glitching is reduced

2) Twist all of your servo and ESC leads to reduce EM emissions

3) Put the receiver as far as possible from the ESC

4) Wrap the receiver in aluminum foil. I have heard that this can help shield from ESC noise, but can't say for sure if it works.

If all else fails, go to a better receiver like a Hitec micro 555, Hitec electron 6 or Hitec superslim. All are dual conversion and 1 mile range.

Electron 6 is my favoraite for light weight, small size and consistant performance.