We've had 6 errors of "PayPal SDK failed to load" this morning - is this just a random glitch or a serious problem? It doesn't sound like something I...
After 2 hours of further testing and trying to rule things out, I believe the crux of the matter is whether the item has Fulfilment as In Stock Only...
I've seen a few websites do it well without affecting the load time too much. One tip is to ensure your video is compressed to the smallest file size...