protons-runtime 5.x is 2x slower than protons-runtime 3.x

[twoeths]

This is the proto file https://github.com/ChainSafe/js-libp2p-gossipsub/blob/v10.0.0/src/message/rpc.proto

This is the testing code https://github.com/ChainSafe/js-libp2p-gossipsub/blob/v10.0.0/test/benchmark/protobuf.test.ts

With protons-runtime v3 I got:

protobuf
    ✔ decode Attestation message                      3446018 ops/s    290.1900 ns/op        -    2053201 runs   60.1 s
    ✔ encode Attestation message                       2506831 ops/s    398.9100 ns/op        -    1492091 runs   60.0 s

with protons-runtime v5 I got:

protobuf
    ✔ decode Attestation message using protons 5.1.0                       1645793 ops/s    607.6100 ns/op        -     983127 runs   60.1 s
    ✔ encode Attestation message using protons 5.1.0                       1630497 ops/s    613.3100 ns/op        -     972079 runs   60.0 s

[achingbrain]

I've created a repo so we can track this over time: https://github.com/ipfs-shipyard/protons-gossipsub-benchmark

Currently the latest version of protons is quite a bit slower encoding gossipsub RPC messages but is comparable when decoding them (node.js v20.8.0, M1 Max macOS 13.5.1).

cc: @wemeetagain