Along side time flies, the volatility will decrease within years, if more and more will use Bitcoin and crypto. For now the rich people can easly manipulate the market condition, because there are not many people who are using it right now, and not well-known for now.
What should change with time for the volatility of cryptocurrency to fall? Will the market be filled with other participants? Why is the price of cryptocurrency not so volatile? There will be a lot of people on the market, but everyone will make transactions at their own discretion, due to specific circumstances, and therefore demand and supply will always change, and the volatility of cryptocurrency will remain as high.