Slow Load Time for Dropdown Webinar List

When I click the dropdown in a webinar list, and attempt to click a date, it takes over 12 seconds for the page to load with the webinar details/register button. This is a huge problem because it looks like the page is not doing anything. And after I choose a line item from the dtropdown, and its taking over 12 seconds to load, the cursor does not allow me to click anything else. It basically freezes my entire page.