SEO for a News Website

Hello, I own a news website, and with each update, I’ve noticed a decline in Google Search, Google News, and Google Discover. I believe I might be doing something wrong. The articles on the site are generally news pieces, and since we don’t create the news ourselves, they are usually translated from larger international websites and rewritten in our language, but in a different style—not just literal translations. We also include the original article’s source with a do-follow link. I don’t understand why we’re continuously dropping. It seems like we’re doing things differently. We publish 10–15 news articles daily, along with occasional guides and reviews of received products. Currently, we’re also working on creating a product specification database to make the site more useful. However, I have the impression that a lot of the older news content that is no longer relevant might be dragging the site down. Google might see it as useless content and penalize the entire site. On Google, there are many news sites following this formula, yet they’re not penalized. What advice can you give me?