[ethereum/go-ethereum] Transactions bottleneck (300/sec) using 2 gateway nodes and 5 signers (#17423)

These are just basic transactions, from 1 account to another. Im running them on AWS t2.medium and t2.large.

These nodes are all networked together i.e they have been manually added as peers to each other (—bootnode method seems unreliable so had to manually add them).