How Rollups Could Make Ethereum Cheaper to Use

[Btceth01]

The Ethereum   blockchain has had a “scalability” problem for years. Crushed under the weight of its own success, the network now lumbers along at about 15 transactions per second while a single transaction can cost over $20.
This bottleneck prevents the network from growing and gives developers a reason to look elsewhere. Competitors like Polkadot and Avalanche already offer thousands of transactions per second and negligible fees. And if a faster rival should suck up all the talent, Ethereum—and ETH—will fade into obscurity Source