Order confirmation takes way too long

My check-out screen churns for 45 - 75 seconds after "confirm order" is selected before confirmation screen and emails sent. Orders are processed correctly, but it takes a long time, much longer than other websites. Any thoughts on how this can be improved?

OC 2.302 w/ Journal 2 theme using "Journal 1 page checkout"

Thanks

Nope, no thoughts, since you didn't even provide a link to your checkout page.