To edit or not to edit

Hi,

So, I'm having a Seo guy crisis. I have a new website, which has a…main article. This article was delivered by someone else and unfortunately, it has some grammar mistakes and the readability spot from Yoast is orange, instead of green. It also has the keyword used not enough time, this being a red spot problem. :))

But…guess what? It began to rank. These days it was somewhere in the first 10 pages, but right now it's the first result from the third page.

Now…I would like to…

To edit or not to edit