Why is my Kia ProCeed not accelerating smoothly?

I've noticed that my Kia ProCeed is not accelerating as smoothly as it used to. The engine sound also seems louder than usual. What could be causing this and how can I improve the acceleration?

It could be that there is an issue with your fuel system. You may want to get it checked and possibly replace any clogged fuel filters.

Another possible cause could be a problem with your spark plugs. Over time, they can become dirty or worn out and affect engine performance. Try replacing them and see if that helps.

It's also possible that you have a faulty oxygen sensor. This sensor helps regulate the air-fuel mixture in your engine and if it's not working properly, it can cause issues with acceleration. I recommend getting it checked by a mechanic.