I’m wondering if people often use the video cards, and whether they are slow-loading?
I’ve tried using them for the first time to host two short clips. From my end, only the first couple of seconds will play – after that it’s stuck on buffering. It could be my connection, but I don’t seem to be having general internet speed problems.
Your video cards are working fine for me (no buffering observed).
Unlike images (which Ghost will resize and even serve in a different format if your theme directs it to), I don’t think there’s any built in resizing for video.
If that’s correct, that’s an advantage of using an external service - YouTube et al. will serve lower resolution video on slower connections (and phone screens), which means things load faster and don’t buffer.