MPC_ACC_DECOUPLE - better description (#23518)

src/modules/mc_pos_control/multicopter_position_control_limits_params.c

@@ -143,6 +143,8 @@ PARAM_DEFINE_FLOAT(MPC_THR_MAX, 1.f);
  * Acceleration to tilt coupling
  *
  * Set to decouple tilt from vertical acceleration.
+ * This provides smoother flight but slightly worse tracking in position and auto modes.
+ * Unset if accurate position tracking during dynamic maneuvers is more important than a smooth flight.
  *
  * @boolean
  * @group Multicopter Position Control