She lip syncs and badly and cannot dance either.
Her singing is electronically enhanced. Does not sound human.
Google: taylor swift lip syncing
https://tinyurl.com/4kh6nfn6
r/SwiftlyNeutral
found a video where u can tell where she lip syncs and doesn’t lip sync!
https://www.reddit.com/r/SwiftlyNeutral/comments/1dp1zqf/found_a_video_where_u_can_tell_where_she_lip/
Well, she's clearly not lip-syncing here at the 3:30 mark when she forgets the lyrics and stops the song.
Right Where You Left Me Live with Aaron Dessner at Taylor Swift's Eras Tour
But you're right about her dancing. She cannot dance.