Ethereum handles 15 transactions per second. Visa handles 24,000. That gap is why Layer 2s exist.
Layer 1 is the base blockchain. Layer 2 is a network built on top that processes transactions faster and cheaper, then settles back to Layer 1 for security.
It matters because crypto can't work at global scale on Layer 1 alone. Arbitrum, Optimism, and Base already process millions of transactions daily at a fraction of Ethereum's cost. Scaling isn't a future problem. It's being solved right now.
Which L2 are you actually using?