Latency spikes in Photon Realtime OpCreateRoom/OpJoinRoom under concurrent requests

Determine whether enabling Photon’s Async HTTP fallback or adjusting the server’s MaxCCU setting deterministically reduces the latency spikes observed when many clients issue OpCreateRoom or OpJoinRoom operations concurrently.

Photon Realtime queues these operations on the game server’s per‑peer message dispatch queue, and the latency increase depends on an unspecified concurrency threshold; while the documentation mentions Async HTTP and MaxCCU, it does not expose the internal throttling algorithm that would guarantee a predictable effect on queuing delay.

Does enabling Async HTTP fallback change the observed latency pattern under a fixed concurrent load? Does raising the MaxCCU limit produce a proportional reduction in queuing delay? Is there a measurable concurrent‑request threshold beyond which latency spikes persist regardless of these settings?