WordPress DB pulling from old demo DB

I originally created my website on a demo server.
I then followed all the steps on wordpress support on how to move wordpress to a new server when I wanted to move it to my main domain.
Everything seemed to be working fine, however I am experiencing that my website load speed is VERY slow. I therefore took a look in the DB of the new website and found that my new website DB is pulling the “autosave” posts from my old demo server.

I looked in the wp_posts table in PHPMyAdmin to find this. My demo server is still running, but will be taken down shortly. I thought that by following the steps I exported the DB, and imported it to the new one meaning that my new server was running on its own DB.

I can also see that any new posts I have created AFTER the move are loading a lot faster and in the DB has no mention of the demo server in their details.

How can I correct this so my posts are not from the demo DB without having to start all over?