Is there an SRS app or Anki feature that takes into account your reaction time when answering a card? I've wanted to use Anki for things like speeding up mental

Is there an SRS app or Anki feature that takes into account your reaction time when answering a card? I've wanted to use Anki for things like speeding up mental arithmetic but Anki doesn't seem to have a feature for measuring and plotting progress on response times.