Cryptocurrency at large has it own functionality and if economy seems not to grow that doesn't mean it would affect bitcoin in fact to me I sees it to be the alt means of reviving our money or assets. With the inflation rate I may decide to convert all my fiat use them to buy bitcoin and hold and after some while I could sell back to gain back my money so is another means to save us from financial meltdown or crisis.
But at the same time, if the economy is not growing, then cryptocurrencies will not grow either. There is no miraculous escape from inflation, and cryptocurrencies are among the first to suffer if we see any geopolitical uncertainties or a downturn in the global economy. I read a lot of different opinions that bitcoin is the salvation from various kinds of economic shocks, but in fact, it turns out that bitcoin is almost the first thing to get rid of when there is a crisis in the world.