See "Deformations and distortions" paragraph in https://iquilezles.org/articles/distfunctions/ https://iquilezles.org/articles/distfunctions/ where it suggests

See "Deformations and distortions" paragraph in https://iquilezles.org/articles/distfunctions/ https://iquilezles.org/articles/distfunctions/ where it suggests playing with the ray-marching step size.