How to improve acceleration in my Ford Focus?

I've noticed that my Ford Focus has been lacking in acceleration lately. What can I do to improve it?

First, make sure your tires are properly inflated. Under-inflated tires can greatly affect acceleration. Second, consider getting your car's air filter changed. A clogged air filter can also hinder acceleration. And lastly, check your spark plugs. Worn out spark plugs can cause a decrease in acceleration.

You may also want to have your fuel injectors cleaned. Dirty fuel injectors can lead to a decrease in acceleration. And make sure you are using the right type of fuel for your car. Using the wrong fuel can also affect acceleration.