Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
The noopener and noreferrer are usually added automatically added by WordPress to any linked element set to open in a new tab.
Rank math does not have an option to control the noopener tag. If you don’t want to meddle with the code yourself, you can seek the help of a developer to add the suggested code to change this option.
Here’s a screencast for your reference:
https://i.rankmath.com/ugfzdj
As for the links opening in new tab, you can disable external links from opening in new tab by disabling the option in Rank math > General Settings > Links

I hope that helps. Thank you, and please don’t hesitate to contact us anytime if you need further assistance.
Hello,
We are glad we could address your concern. If you have any other questions in the future, know that we are here to help you.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.