Ethereum (CRYPTO: ETH) is the world's second-biggest cryptocurrency by market value -- and on its way to changing the way business is done. That's because decentralized applications (dApps) on the blockchain help users do everything from managing their finances to collecting art. This popular crypto player has climbed more than 500% over the past three years.

I'm optimistic about Ethereum's future. But two cryptocurrencies may actually outpace this crypto giant. I'm talking about smaller, younger players, Cardano (CRYPTO: ADA) and Avalanche (CRYPTO: AVAX). Here's why...

Ethereum's biggest problems are its transaction speed and high cost. It's in the middle of an upgrade set to address these issues. But Cardano already is faster -- and it's on its way to picking up even more speed.

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Source Fool.com