Car will not accelerate over 60?

What have you done to check it out? Have you run the codes? Here is a guide to help you, it sounds like it could be a clogged catalytic converter.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

And this guide can help as well:

https://www.2carpros.com/articles/engine-has-low-power-output

Please go over these guides and get back to us.