WiFi performance: ESP8266 vs ESP32

gistfile1.txt

#if defined(ESP8266)
#include <ESP8266WiFi.h>
#else
#include <WiFi.h>
#endif
#if defined(ESP8266)
#include <ESP8266WebServer.h>
#else
#include <WebServer.h>
#endif
#include <PubSubClient.h>
#include <FastLED.h>

const char *mqtt_server = "192.168.1.3"; //mqtt server
const char *ssid = "XXX";
const char *password = "XXX";
float framerate = 0;
float framerateCounter = 0;

WiFiClient espClient;
PubSubClient client(espClient); //lib required for mqtt

void callback(char *topic, byte *payload,
              unsigned int length) {   //callback includes topic and payload ( from which (topic) the payload is comming)
  framerateCounter++;

}

void reconnect() {
  while (!client.connected()) {
    Serial.println("Attempting MQTT connection...");
    if (client.connect("ESP32_clientID")) {
      Serial.println("connected");
      client.subscribe("lights/glowwormluciferin/set/stream"); //topic=Demo
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}


void connectmqtt() {
  client.connect("ESP32_clientID");  // ESP will connect to mqtt broker with clientID
  {
    Serial.println("connected to MQTT");
    client.subscribe("lights/glowwormluciferin/set/stream"); //topic=Demo
    if (!client.connected()) {
      reconnect();
    }
  }
}


void setup() {
  Serial.begin(1000000);
  pinMode(LED, OUTPUT);
  digitalWrite(LED, LOW);
  WiFi.begin(ssid, password);
  Serial.println("connected");
  client.setServer(mqtt_server, 1883);//connecting to mqtt server
  client.setCallback(callback);
  //delay(5000);
  connectmqtt();
}


void loop() {
  if (!client.connected()) {
    reconnect();
  }

  client.loop();

  EVERY_N_SECONDS(10) {
    framerate = framerateCounter > 0 ? framerateCounter / 10 : 0;
    framerateCounter = 0;
    Serial.println("framerate");
    Serial.println(framerate);
  }

}