Website speed and help

Hello, We had someone on Freelancer.com build our site, but it is terribly slow and therefore almost unusable. We also can't find the pages to load up some of the video for the main pages. In addition, the gallery thumbnail image size is different from our old site, so the thumbnails are now distorted. These are all issues that need to be fixed. We also would like to add a couple of pages to the site. Most importantly, the site is way too slow. You can see it at [login to view URL] We would like this to be accomplished within 2 weeks. Please include sites that you have built in a PM. Thank you for your bid. Karen Connell