I really don't know what when wrong.

So, since September my company hired an SEO agency.

They provide basic service like site audit, content writing and off page link building.

I have checked Search Console, there is no major core web vital problem.

The page speed score is 68 for mobile.

There's no indexing problem as well.

The website is about finance and business.

We using WordPress.

Some problems perhaps: 1. Two years ago the ex-content writer write a copy-paste articles. Too many to check one by one. 2. There's date info in the url, example: /03/15/2024/starting-small-business/ (It's set up like this before I join this project) 3. Agency using forum profile backlink type (?). They use the strategy for themself and the traffic growing.

What other things I should check to find the root problem?

Thank you for your help.