When I was talking about this with a friend who's a native Chinese speaker, they played her voice lines with the original Chinese dub and couldn't find any distinguishable accent aside from maybe a Beijing dialect, so we have no idea why the English dub made her sound like that.
Genshin Impact Dendrobium: How to Find These Specialties to Make a Bait Basically, The Dendrobium is a local specialty that means it is available in a specific location.
How to Find and Use Genshin Impact Dendrobium? Maybe as Chinese media becomes more mainstream translators will someday reach a sweet spot where they can convey everything that was said in the original work while making it sound natural in English.