Why are there so many coins that have higher transfer rates than bitcoin or eth, and the fee is also cheaper than it is for increasing transfers, but I feel like more advanced coins are getting worse. . Is it now that cryptocurrency is just a place to invest and make a profit without seeing its power and meaning? I think better things will replace the old ones
Higher transfer rates, what do you mean? Fee for transaction? Or you mean transactions per second?
TPS is easy to do. There's been dozens of altcoins with hundreds of tps years ago, Litecoin is an example. Only problem is, they're not as secure. So Bitcoin may only need 1 confirmation but Litecoin maybe needs 7 confirmation. So in the end, you're talking about the same thing.
it mean transactions per second