It might be a person (but: can you prove those things are sufficient for personhood?), but even then it sure isn't a human person.

And what do you mean by an anticlimax?

To circumvent any question of what it takes to make an AI work, let's posit a brain upload. Just one person, so it's a memetic monoculture — no matter how many instances you make, they'll all have the same skills and same flaws.

Transistors are faster than synapses by about the same ratio to which a marathon runner is faster than continental drift, so even if the only difference is speed, not quality of thought, that's such a huge chasm of difference that I can't see how it would be an anti climax even if the original person is extraordinarily lazy.