Slow streaming home sharing

In my configuration, I purchase and download TV shows on to my Mac mini. I then stream to my iPad or APple TV using Home Sharing. Everything was working fine until I upgraded OSX on the Mini. Despite all my devices being on the same network and all having HS enabled and logged in to my Apple ID, I couldn't get anything reconnected to the mini.

I was finally able reconnect following innumerable restarts and disconnecting and reconnecting Home Sharing. Works fine on the Apple TV but iPad is still impossibly slow....ANY ideas?? I had no idea Apple products could be this difficult?!!?