Issue: Optimization Unity HLAP response speed

Here's background of my work:
1. Use Unity HLAP's message system to transfer custom messages between client and server.
2. Server and Client has no network issue (RTT <= 3ms) . Actually they're in same LAN, so zero network latency issue.


My Issue is - seems unity take too much time to send and receive inside the engine.

Imaging a messaging cycle:
1. Client send a network message A to server
2. Server receive A, and response network message B to client
3. Client receive network message...

Issue: Optimization Unity HLAP response speed