Do you have paragraphs you’ve written that you objectively think are okay but your heart isn’t quite with them? If so what do you do with them?
You leave them in and move on.
There is this completely unreasonable pressure in writing circles at large to be "inspired", and if you were not "inspired" while writing that writing must be in some ineffable way lesser.
Here is a secret: if you are writing seriously and consistently, the majority of your writing isn't going to feel super snowflake special. And nobody is going to be able to tell. There is generally no particular quality difference between inspired v uninspired writing that is discernable by an outsider.
And honestly, having some plainer prose really helps your extra good lines shine. Look at the mechanics of my writing--most of my prose is actually fairly straightforward and plain. Then I do something clever and reader brains light up because the plainess set a baseline that has now been subverted. A rookie mistake is to try and be clever in every sentence, but unless you are That Good, that kind of writing feels fake/overdone to readers.
So leave them in. Move on. If you figure out how to word it better later, fix it when you edit. That's what editing is for, yo. But if there's nothing wrong with it and it's doing its job, don't get stuck on it.