Why does my Google Ads performance suddenly go up and down?

I have a website where the ranking in Google Search Console suddenly goes up and suddenly disappears. The graph is like the picture above, is there a solution?

Looks like Google’s testing your pages, then pulling them back. Common with AI-heavy or templated content, weak internal linking, or links from shady sources. I’d check crawl stats and backlinks, and stop pushing new pages until it stabilizes a bit.