Scalability solution refers to methods or technologies that enhance the ability of a blockchain network to handle a growing number of transactions without compromising efficiency. As more users join a network, it can become congested, leading to slower transaction times and higher fees.There are several approaches to improve scalability. One common method is increasing the block size, allowing more transactions per block. Another approach involves implementing layer-2 solutions, which operate on top of the main blockchain. These can process transactions off-chain and then settle them on the main chain.Additionally, sharding divides the network into smaller, manageable pieces, enabling parallel processing of transactions. Ultimately, scalability solutions aim to ensure that blockchain systems can serve a larger user base while maintaining speed and affordability.