All combat disciplines emphasize multiple shots from dynamic positions and tactical scenarios (some more realistic than others).
No combat instructor today would teach one handed combat shooting with one hand as your PRIMARY method.
Shoot with two hands if at all possible-when the adrenaline reaches your major muscles, you have tremendous strength, but you lose fine motor skills as well (trembling).
Many folks who post on this forum do not have real life experience, so as an NRA Rifle and Pistol Instructor, well trained in CQC and modern pistol craft technique, as well as a combat vet, get professional training and practice, shoot (IDPA) matches for stress and tactics and be aware...