I use Grammarly to check for errors I make during writing more serious stuff (English is not my native language), but any suggestion it sends in my way changes

I use Grammarly to check for errors I make during writing more serious stuff (English is not my native language), but any suggestion it sends in my way changes the tone of the text so much that it sounds like it's written by a PR agency with a fake, forced attitude; sounding bland and colorless. So no, thank you. Correct my textbook punctuation mistakes, and leave my wordy and "not positive enough" sentences to me.