I disable tor for money operations, so that's not an issue for me, but I agree that zapping in Amethyst feels slower than in Primal, or Nostrudel. But that may be an illusion because Amethyst displays that little purple progress wheel that goes around, and then hangs for a bit before zap is completed while Primal and Nostrudel immediately register the zap visually while the zap completes in the background.