Bot API 408 Timeout during JMeter load test

Why is this setting causing timeouts when simulating high concurrency? Running JMeter from Singapore against Genesys Cloud. Targeting /api/v2/bots/queries. Simulating 50 concurrent requests. Getting 408 Request Timeout errors after 10 seconds. Retries fail. Genesys Docs mentions rate limits but nothing on timeouts. Need help optimizing the load pattern. Is there a WebSocket limit I am missing?