I’ve spent years fixing WordPress sites that lost traffic. You don't need a big...

https://bizzmarkblog.com/should-i-remove-or-redirect-broken-links-in-old-blog-posts/

I’ve spent years fixing WordPress sites that lost traffic. You don't need a big budget to improve. Use image compression to speed up pages and link new posts to older content. Also, set up Akismet to block spam comments