Scalability is a common challenge in cryptocurrency development, as blockchains can become congested with increased user demand. Solutions include implementing layer-2 scaling (e.g., Lightning Network for Bitcoin or zk-Rollups for Ethereum), sharding, or utilizing Proof of Stake (PoS) consensus for higher transaction throughput. Another option is to use blockchains like Solana or Avalanche, which prioritize scalability from the start. Scalability ensures that a cryptocurrency can handle a growing user base without sacrificing performance or increasing transaction costs.
source: https://www.blockchainappfacto...currency-development