Page with videos embedded via Youtube Channel Gallery loads very slowly

Hello,

We have a page that displays videos from Youtube via this plugin. However, the page takes an extremely long time to load (about 12 seconds). Using a browser’s developer tools, one can see that it is the server’s response that is causing the delay. This does not happen on any other pages, and we found that the response time scales with the number of videos on the page (ie. for only a few videos, it may only take a couple of seconds rather than 12, though that is still long).

This struck me as quite odd since it’s not like the videos are being embedded into the page and sent along with the html; they’re loaded from YouTube asynchronous as needed later. In fact, the page itself is only about 70kB, so I’m not sure what the server is doing for 12 seconds!

If anyone has any insight into this issue, it would be much appreciated.

Thanks!

The page I need help with: [log in to see the link]