Why is my Kia Rio not accelerating properly?

I recently bought a used Kia Rio and I've noticed that it's not accelerating as smoothly as it used to. It's not a huge difference, but it's definitely noticeable. What could be causing this issue and how can I fix it?

It sounds like your Kia Rio may have a clogged fuel filter. This can cause inconsistent acceleration and can be easily fixed by getting the fuel filter replaced.

Another possibility is that your Kia Rio's spark plugs need to be replaced. Worn out spark plugs can affect your car's acceleration and power. I suggest getting them checked and replaced if necessary.

It could also be a problem with your Kia Rio's transmission. If the gears are not shifting properly, it can cause acceleration issues. I recommend taking your car to a trusted mechanic to diagnose and fix the issue.