So my car is having issues accelerating it's a 2014 Hyundai Accent

What is your question?

What's happening is that when I come to stop sign or when I stop the car completely and then I take off it has some issues accelerating past 20 mph also the car sounds louder than normal as well we I take off or put my foot on the gas what could cause the issue I tried fuel treatment to see if that would clear the issue but it didn't also checked the air filter and it is clean it only has 33,000 miles on it basically brand new