Why is the Kia Stonic experiencing a decrease in acceleration?

I've noticed that my Kia Stonic has been struggling to accelerate, especially when merging onto the highway or passing other vehicles. What could be causing this issue? Is it something I should be concerned about? Any advice on how to fix it?

It's possible that your Kia Stonic is experiencing a decrease in acceleration due to a clogged air filter or a faulty oxygen sensor. I would suggest taking it to a trusted mechanic to have it checked out.

Another possible cause could be a dirty fuel filter. It's important to regularly replace your fuel filter to avoid any performance issues with your vehicle. You can easily do this yourself or have a mechanic do it for you.

If you're noticing a delay in acceleration, it could be a sign that your transmission is starting to fail. I would recommend taking your Kia Stonic to a certified Kia dealership for a thorough inspection.