Investigate the effect of Nagle's algorithm of the request performance

Nagle's algorithm delays data before it is sent via the network. It attempts to optimize throughput at the expense of latency.

> In any non-pipelined stop-and-wait request-response application protocol where request data can be larger than a packet, this can artificially impose a few hundred milliseconds latency between the requester and the responder.

see https://en.wikipedia.org/wiki/Nagle%27s_algorithm

Consider disabling Nagle's algorithm with https://nodejs.org/api/http.html#requestsetnodelaynodelay