Better reflect real-world API with bigger payloads about benchmarks

[aichholzer]

@abenhamdine -Better late than never, right?
In the next couple of days I will get some big payloads into the tests and make sure they get benchmarked properly. I will keep you posted.

[cagataycali]

What a lovely welcome, thank you. It makes me happy to help.
Response size matters.

If you add your tests like this,

• benchmarks
  • ...
  • payloads
    • small
      • express
      • fastify
    • medium
      • express
      • fastify
    • big
      • express
      • fastify
    • huge
      • express
      • fastify

Then add list that'll help lot I think

[agauniyal]

@abenhamdine I would suggest using more than 1 tool for benchmarking as well because during my prev experience some of them tend to show variance b/w themselves as well as their versions too.

[cagataycali]

I add bigger json for express, when I add for every package this issue will close.