As most have said.. It is best to wait until you have your Visa in hand.
I did the same thing you are asking about a couple years ago. I thought it would be faster to go ahead an get the CFO interview out of the way. Then just go back once she had her Visa. She was told that it was a waste of her time to be there without the Visa, so nothing was gained.
But, with covid and the changes in the actual CFO process most are done online now.