Which is faster Solana or Polygon?

I'm curious to know, which blockchain platform offers faster transactions between Solana and Polygon? Solana boasts of its high-speed performance, while Polygon seems to have a strong reputation in the Ethereum ecosystem. Could you elaborate on the specific advantages of each in terms of transaction speed? Also, are there any other factors that might affect the comparison, like scalability, cost, or network congestion? I'm trying to make an informed decision for my crypto investments and transactions, so your insights would be greatly appreciated.