it also depends on the cut and what you cook too. If you only stir-fry chickens that has been diced small with high heat, (I think?) you can achieve it 3-4 minutes, however that requires extreme precision and I think also require good utensils with precise heating. Cooking it longer, ex 7-8 minutes with lower heat usually bring better result and far easier.
Deep-fry or boiling? I'm unsure. Steaming one? Surely you can't
If you cook chicken taken straight from the fridge it'll take longer and cook more unevenly than room temperature chicken.