Why did my Chaos Vehicles become so slow in this project?

Hi! I’ve changed nothing in this project and all of a sudden the Chaos physics in this project have become very slow. I’m not sure what happened. You can see in the second part of this video in another project the same Chaos Vehicle behaves fine. I have two cars that both behave strangely. So, I think it has to do with the world settings or project settings as opposed to their individual blueprints. Your guess is as good as mine. Thanks for checking it out.