Calculations do not become more difficult. The network adjusts to the power) so you are writing incorrectly

Why is cryptocurrency growing in price so much? Because the value of real money is literally decreasing before our eyes. There is an unbridled emission of money in the world. For example, the Trump government (during his first presidential term) printed 9 trillion dollars, although the entire US GDP for 2019 was 21 trillion dollars. That is, the authorities went and printed almost half of the country's economy at once. Biden barely came to power, and in the first 100 days he printed another 2 trillion dollars...

But with cryptocurrency, unbridled emission is impossible. The formula by which it is calculated (bitcoin is a reward for calculations performed by a computer) is finite. And the calculations themselves are becoming more and more complex with the release of each new bitcoin. If an ordinary home computer could handle the first calculations, now only entire mining farms can do this: special powerful computers united into a single network.