I'll say it again, she was honestly one of the worst performances on SNL I've ever seen. And it wasn't because she was boring or just standing there, it was because she's completely fucking tone-deaf and kept randomly breaking out in some bizarre fake German accent like she was possessed.
It wasn't nerves either, look at literally all of her live performances that haven't been through editing. She's terrible (not to mention completely fake, but that's another story).
That pretty much sums up my feelings.