If you hire nine women to make a baby, you won't get a baby in one month.

But if you hire one woman a month and impregnate her immediately, it will still take you nine months to get the first baby, but after that you'll get one baby per month for the rest of the year.

That's the difference between latency and throughput (and that's also how pineapple farms work, since it can take up to a year to grow pineapples).