Native English speaker and very experienced with Wordpress. (I'm in Oregon USA, born & raised, actually, but was in Canada when I created my account here and can't change it)
There are numerous possible causes of a slow Wordpress site..
Is this a brand new site with only a few pages/posts, or an older one with many pages/posts?
If older, was something changed recently?
In order to look into why it's slow, I would need access to /wp-admin AND FTP access, and potentially your web hosts control panel, to rule out a database problem.
I will request any password you provide be changed once the project is completed.