Why is my Kia Stonic's engine running rough?

I noticed that my Kia Stonic's engine is not as smooth as it used to be. It's making strange noises and feels like it's struggling. What could be causing this issue?

This could be a sign of dirty fuel injectors. I recommend using a fuel system cleaner to help clean them out.

It's possible that your spark plugs are worn out or need to be replaced. This can affect the smoothness of your engine.

Check your air filter. If it's clogged or dirty, it can cause your engine to run rough. Replace it if necessary.