Hi, the latency per hop is at best the interval_min_ms value you give to the init function. The forwarding mechanism is a bit untraditional, as it's based on the Trickle algorithm. You can read more about it in the how it works document.
Assuming no corrupted packets, the average per-hop latency is 1.5 * interval_min_ms, with the worst case being 2 * interval_min_ms.
