Those symptoms do sound like they could be related to worn spark plugs, especially if they haven’t been replaced in a long time. A rough idle, slower acceleration, and reduced fuel economy are all common signs. Once the new plugs are installed, many drivers notice smoother engine performance and better throttle response. It also makes sense to have the ignition system checked at the same time to rule out any other issues. I recently came across https://autocruze.com.au/, which has useful information about vehicle maintenance and inspections. Keeping up with regular servicing can often prevent small problems like this from becoming more expensive repairs later on.