Attack from Product filter

Hi goys,
I have ddos attack from this URL:
“GET /product-category/%D9%BE%D8%B3%DB%8C%D9%88-%D8%B4%D8%A8%DA%A9%D9%87?filter_%D9%86%D9%88%D8%B9=%D8%A8%D8%AF%D9%88%D9%86-%D8%B4%DB%8C%D9%84%D8%AF,%DA%A9%DB%8C%D8%B3%D8%AA%D9%88%D9%86-%D8%B4%D8%A8%DA%A9%D9%87-%D9%BE%D9%87%D9%86,%D9%BE%D8%A7%D9%88%D8%B1-%D9%85%D8%A7%DA%98%D9%88%D9%84,%D8%AF%D9%88-%D9%85%D8%A7%DA%98%D9%88%D9%84-%D9%BE%D9%87%D9%86,%D8%B3%DB%8C%D9%86%DB%8C,%DB%8C%DA%A9-%D9%85%D8%A7%DA%98%D9%88%D9%84-%D8%A8%D8%A7%D8%B1%DB%8C%DA%A9,%D8%A7%DB%8C%D8%B3%D8%AA%D8%A7%D8%AF%D9%87&product_cat=%D9%BE%D8%B3%DB%8C%D9%88-%D8%B4%D8%A8%DA%A9%D9%87&query_type_%D9%86%D9%88%D8%B9=and&yith_wcan=1”
This is fillter Product attack,It is not actually an attack,
This function makes the visit of our site higher than the actual level
And this issue causes the SEO of our site to be damaged
How can I prevent this attack model with Cloudflare WAF?