If a new website has DA 2, PA 21, and a Spam Score of 56%, how can the Spam Score be reduced? How long will it take to fix, and what steps should be taken to improve it as quickly as possible?
That's hard. Since most of AI and Crawlers now are just bots. You will need a good WAF to block certain bad Crawlers and AI bots. The bad side is that your traffic can drop.
Use Safeline WAF, Cloudflare you can configure it in free plan and other WAF services.