The current Ethereum network supports around 17-30 transactions per second. Causing supply to be low while demand is high. As seen by the higher Gas Fees typically associated with the Ethereum Network.

The Polygon Network. Is a secondary network that is built on the Ethereum blockchain. Allowing for 65,000 transactions per second. Polygon does this by grouping the 65,000 transactions into a bundle that is then processed as 1 Ethereum block chain transaction. Sharing the ETH gas fees between 65,000 users.