I started on Monday and after 600 questions am at the following for my test on the 9th. I think your scores are fine and that you should pass with those scores. I've scored above an 81 on my preceding 3 CPA exams and I don't think my trending has ever been higher than a 75% on Ninja. For AUD, it was literally a 68%.
Corp. Governance 75%
Economics 66%
Financial Mgt. 64%
Info Tech 88%
Operations mgt. 65%
Overall 72%
FAR-81 August 2018
REG-81 November 2018
AUD-83 January 2019
BEC-91 March 2019