perf: disable getstream NetworkMonitor and lower face-detector fps

backend/main.py

@@ -21,6 +21,22 @@
 
 load_dotenv()
 
+# Disable getstream's NetworkMonitor ping-loop.
+# By default, NetworkMonitor pings 8.8.8.8 / 1.1.1.1 / 208.67.222.222 every
+# second per session via run_in_executor. On GKE pods (no CAP_NET_RAW), all
+# pings fail immediately with PermissionError, so the executor is spammed with
+# ~27 no-op calls/second at 9 concurrent sessions. Disable by replacing
+# start_monitoring with a coroutine that does nothing — the WebSocket
+# reconnect logic in getstream>=3.3.3 is robust without it.
+from getstream.video.rtc.network_monitor import NetworkMonitor  # noqa: E402
+
+
+async def _noop_start_monitoring(self) -> None:
+    pass
+
+
+NetworkMonitor.start_monitoring = _noop_start_monitoring
+
 
 class _DropUserContentFilter(logging.Filter):
     """Drop framework log lines that quote user or agent text verbatim.

backend/src/inworld_conversational_assistant/agent.py

@@ -201,7 +201,7 @@ def _get_subscription_config(self):
 async def create_agent(**kwargs) -> Agent:
     face_processor = MediaPipeFaceProcessor(
         model_path=str(MODEL_PATH),
-        fps=8.0,
+        fps=2.0,
     )
 
     # `DISABLE_ANAM=1` skips the avatar publisher entirely. Used to isolate