Core blockchain basically took the weaknesses of other blockchains and converted them into its own strengths.

Core blockchain Vs Bitcoin 

Bitcoin:
♀️First popular blockchain.
♀️Introduced proof-of-work (PoW) consensus mechanism.
♀️Highly decentralized.
♀️Limited to seven transactions per second (TPS).

Core:
♀️Improves coin's transaction throughput.
♀️Offers higher TPS, addressing Bitcoin’s scalability issues.

Core Blockchain vs. Ethereum

Ethereum:
♀️Most popular smart contract blockchain.
Introduced the Ethereum Virtual Machine (EVM).
♀️Processes more TPS than Bitcoin (15 TPS) but still limited.
♀️Faces scalability and centralization concerns.

Core:
♀️Enhances scalability beyond Ethereum’s capabilities.
♀️Reduces centralization risks associated with Ethereum