The dual field effect on the relaxation time of the liquid‐crystal BDH‐E7 has been analyzed and demonstrated experimentally by using static magnetic and pulsed optical fields. The novelty of this effect is in the use of a strong external field to accelerate the molecular relaxation process. An improvement factor on decay time up to 10 or higher depending on the field strength can be achieved. At high fields, this relaxation time is inversely proportional to the external field intensity and is independent of the liquid‐crystal thickness. Since this effect does not rely on the specific properties of liquid crystals, potential applications exist among many nematic liquid‐crystal materials.