Hi Stephen,
Please note that ranking on Google depends on so much more than just your on-page optimization. You could have the perfect article and still struggle to break the top 10 in SERPs. Here are some of the factors Google considers when ranking you:
1. Your website’s authority
2. Your content’s quality and how better it is than the other article currently ranking.
3. How competitive the keyword is.
4. How many backlinks you have and if they are better than what the other guys ranking for that keyword have.
5. Your website’s crawlability.
6. Frequency of new content and content updates.
7. So much more that there is a dedicated blog post on it by Brian Dean 🙂
https://backlinko.com/google-ranking-factors
I would recommend that you keep at it and work on acquiring more links to break into the top SERPs.
With that said, Rank Math is not able to read text of some of the theme builders.
We have added API access to the content analysis in the Rank Math plugin to make content from page builder plugins readable by Rank Math.
You would need to contact the developer of the plugin you mentioned by showing the following link:
https://rankmath.com/kb/content-analysis-api/
Many known companies have already added the compatibility, as it takes a few hours:
https://rankmath.com/compatibility/divi/
https://rankmath.com/compatibility/elementor/
https://rankmath.com/compatibility/themify-builder/
https://rankmath.com/compatibility/page-builder-framework/
https://rankmath.com/compatibility/flothemes/
However, this does not affect your SEO as Google and other bots will still see your content as it appears in the browser for visitors.
I hope that helps. Please let us know if there’s anything else you need our assistance with. More than happy to help.
Thank you.