Ethereum Merge Performance Benefits

The upcoming merge to POS will make it easier to know which node will be submitting a block next, this helps better reroute transactions to fill up the blocks before submitting them. Most blocks on Ethereum now are not even 50% full due to the unknown selection of blocks.

This change alone will allow Ethereum to almost double it's TPS, the fixed block time of 12 secs further helps it a bit with stability of performance.