When accelerating from a stop it sputters and is slow to accelerate

I have replaced the fuel pump and fuel filter twice in the last 3 months thinking maybe it would fix my issue, but it hasn't what happens is. when I'm pulling away from a stop sign or red light it sputters and has a real weak acceleration, it has weak power. if I put some of that fuel treatment in the gas it runs a little better but not much.. I'm guessing it may be the injectors? What do y'all think?