Fastest free Acala RPC, live no-key endpoint latency

Acala (RPC-2) posts the lowest rpc latency at 4 ms (p50, 24h) on Fastest free Acala RPC, live no-key endpoint latency. HTTP round-trip latency for Substrate chain_getHeader queries against every available public Acala endpoint, audited every 60 seconds from 3 regions.