If Shopify traffic has plateaued for months, outside SEO help may be worth...

https://keeganssuperdigests.zenbloomer.com/posts/shopify-duplicate-urls-how-do-i-stop-them-from-getting-indexed

If Shopify traffic has plateaued for months, outside SEO help may be worth exploring - but ask what they will actually change. Request Search Console non-branded traffic or organic revenue as proof, not a polished promise