MQTTAgent_Publish callback timeout

HI,
Can you check these 2 threads. They might give you some idea:

  1. MQTTAgent Publish is slow as compare to FreeRTOS MQTT - #20 by txf
  2. https://forums.freertos.org/t/mqtt-agent-publish-slow-and-causes-incoming-callbacks-to-slow-as-well/16747/