Got a response from support and they did not blame my browser or system. Here is what they are saying
Thanks you for alerting us to this. It appears as though we are experiencing some site slowness. We are investigating this issue and should have it resolved shortly.
We apologize for any inconvenience this issue is causing you. In the mean time, if there is anything I can do to assist you further, please don't hesitate to ask.
Sincerely,
Auctiva Support