Looking for advice to improve existing woocomerce shop without affecting WordPress SEO.

Hey all. So we have WordPress website built few years back and there has been few different people working on it. While we are happy with overall website look and we have built some SEO ranking, but website is slow and woocomerce side is big mess.(there are way to many pluggings installed, to many problems and hard to use )
We are looking to higher developer to help us to fix issues with existing website and build solid woocomerce with fronend and backend development.

So my question would be: rather then starting from beginning building new website and loosing all rankings, would it make sense to duplicate website, remove woocomerce plugin completely, improve overall website in staging site and build new woocomerce. Once fully finished staging site replace with original.
Would that make sense?🤔

Would appreciate good advise.

 

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