Ummm...you're giving fools a run for their money?
I trust you didn't change the bottom dropdown menus for "Save" and then "Go back to previous page"
When I click "Go" right below the edited data, it's quick. The other "Go" is also pretty quick. How active is your database? Regardless, it should be able to do the update in a reasonable amount of time.
There's also a slight possibility that your website has locked the database while in use, but I'm no DBA.