I don't believe you that the most important in crypto to stable income everyday because that is not main reason why crypto was created, I think it was created to serve as alternative to fiat currency, so things can get easier in term of transaction not to involve the third parties. Now that everyone aim is to make profit from crypto that doesn't necessary you make the profit everybody but your target should always be how will you make that big profits  from crypto.it doesn't necessarily you make income everyday in crypto once you can also make huge profits one day.
If you have huge amounts of money and you want to trade Bitcoin is not that slow in making reasonable profit from it, but if you are investing small amount of money you found it difficult to make some reasonable profits. at is why you see that Bitcoin always slow to increase in price.