Trying to switch from temporary url

I had an existing site with one host. I built a new wp site with a different host using the host assigned temp url. Now that I have switched the dns servers from the old to the new host, my domain points to my main page, but links to other pages still points to the temp url.
Here’s the site so you can see what I mean. http://www.performance-clean.com
How do I change this so my domain is the root for all pages?

Thanks in advance for your help.