WordPress Automatic Plugin can import from RSS feeds and import every new post as a new post on your WordPress site, to import from a specific category. for example if we want to import from this feed https://www.cryptonewsz.com/feed but a specific category
There are two ways to do so
1- Import from the category directly instead of importing from the whole site and checking every post if it has a specific category or not
like importing from the category feed directly
https://www.cryptonewsz.com/category/cryptocurrency/feed/
the category feed should contain the category posts only and it is the fastest method and will save resources checking unwanted posts then excluding them
2- Set the filter option to check if the current checked post contains the desired category or not