SEO effect of duplicating reviews from one site to another site (other domain)

Hey !

I am thinking about buying a new domain and making a new Shopify store on the new domain. I already have another ecommerce store running on another domain on Wordpress. My idea was that I could migrate the store to the new domain and because reviews can't be directly imported, I will have to manually copy about 500 reviews...

My question was related to the SEO effects of copying the reviews from my other site to a new domain. Will it negatively affect the original website ? Is there anything I can do to prevent this ?