Why does my car take so long to actually accelerate when I step on the gas?

What is your question?

My car will sometimes have up to a 3 second delay when I step on the gas. It is extremely dangerous and operating in busy traffic is almost impossible. If I just gradually push on the pedal it will slowly accelerate per normal. But if I want to quickly accelerate theres a serious 2-3 second delay. Can this be fixed?