Joystick Controller using Unity Webrequest

Hi there,

I'm trying to get a Joystick data values, map them and send them to a web server using NodeMCU. Get the data from the web server and use it in a Unity Game to control a Player's movement.

The problem: The response time from Joystick to the Player movement is VERY SLOW, like 1 second delay or more.

I'm trying to make it so that the response time is acceptable, and still stick to the main ideea: using a web server to communicate with the Unity Game.

If there is a better ideea to my approach in the code, please lend me a hand.

Here is the Unity Code, there must be something that I do wrong to get those delays:

 using UnityEngine;
 using UnityEngine.Networking;
 using System.Collections;
 using System;
 public class joycontroller : MonoBehaviour
 {
     string currentWebString, lastWebString = "2";
     public CharacterController controller;
     float horizontal = 0f, vertical= 0f;
     public float speed = 15f;
     public float gravity = -19.62f;
     public float jumpHeight = 2f;
     public Transform groundCheck;
     public float groundDistance = 0.3f;
     public LayerMask groundMask;
     Vector3 velocity;
     bool isGrounded, jump;
     void Start()
     {
         Cursor.lockState = CursorLockMode.Locked;
         StartCoroutine(GetRequest("http://192.168.0.102/"));
     }
     void Update()
     {
         isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
         if(isGrounded && velocity.y < 0f)
         {
             velocity.y = -2f;
         }
         Vector3 move = transform.right * horizontal + transform.forward * vertical;
         controller.Move(move * speed * Time.deltaTime);
         if(jump && isGrounded)
         {
             velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
             jump = false;
         }
         velocity.y += gravity * Time.deltaTime;
         controller.Move(velocity * Time.deltaTime);
     }
 
     void moveCommander(string commandString)
     {
         char[] spearator = { ';'};
         Int32 count = 3;
         String[] tempString = commandString.Split(spearator, count, StringSplitOptions.None);
         int[] commandArray = Array.ConvertAll(tempString, int.Parse);
         if(commandArray[0] == 1) jump = true;
         else jump = false;
         horizontal = commandArray[1];
         vertical = commandArray[2];
         Debug.Log("Button: " + commandArray[0] + " X: " + commandArray[1] + " Y: " + commandArray[2]);
     }
 
     IEnumerator GetRequest(string uri)
     {
         while (true)
         {
             UnityWebRequest uwr = UnityWebRequest.Get(uri);
             yield return uwr.SendWebRequest();
             
             if (uwr.isNetworkError)
             {
                 Debug.Log("Error While Sending: " + uwr.error);
             }
             else
             {
                 currentWebString = uwr.downloadHandler.text;
                 if(!String.Equals(currentWebString, lastWebString)) moveCommander(currentWebString);
                 lastWebString = String.Copy(currentWebString);
             }
             yield return new WaitForSeconds(0.1f);
         }
     }
 }

And just in case, here is the NodeMCU code:

 #include <ESP8266WiFi.h>
 #include <ESP8266WebServer.h>
 const char* ssid = "xxx";
 const char* password = "xxx";
 ESP8266WebServer server(80);
     #define S0  D0
     #define S1  D1
     #define S2  D2
     #define S3  D3
     #define SIG A0
     #define BP  D7
     int sensor13;
     int sensor14;
     int sensor15;
     char commandArray[16];
     char temp[8];
 void setup() {
     pinMode(S0,OUTPUT);      
     pinMode(S1,OUTPUT); 
     pinMode(S2,OUTPUT);
     pinMode(S3,OUTPUT);
     pinMode(SIG, INPUT); 
     pinMode(BP, INPUT);
     Serial.begin(9600);
     delay(200);
     Serial.println("Connecting to ");
     Serial.println(ssid);
     WiFi.begin(ssid, password);
     while (WiFi.status() != WL_CONNECTED) 
     {
       delay(1000);
       Serial.print(".");
     }
     Serial.println("");
     Serial.println("WiFi connected..!");
     Serial.print("Got IP: ");  
     Serial.println(WiFi.localIP());
     
     server.on("/", serverHandler);
     server.begin();
     Serial.println("HTTP server started");
 }
 void loop() {
     server.handleClient();
     sensor13 = digitalRead(BP);
     // Channel 14 (C14 pin - binary output 0,1,1,1)
     digitalWrite(S0,LOW); digitalWrite(S1,HIGH); digitalWrite(S2,HIGH); digitalWrite(S3,HIGH);
     sensor14 = analogRead(SIG);
     // Channel 15 (C15 pin - binary output 1,1,1,1)
     digitalWrite(S0,HIGH); digitalWrite(S1,HIGH); digitalWrite(S2,HIGH); digitalWrite(S3,HIGH);
     sensor15 = analogRead(SIG);
   
     Serial.print("X : ");Serial.print(mapCoordinate(sensor14));
     Serial.print("    Y : ");Serial.print(-mapCoordinate(sensor15));
     Serial.print("    B : ");Serial.println(sensor13);
     commandString(sensor13, sensor14, sensor15);
     delay(500);
 }
 void serverHandler() {
   server.send(200, "text/html", commandArray);
 }
 void commandString(unsigned int sw,unsigned int x,unsigned int y){
   itoa(sw, temp, 10);
   strcpy(commandArray, temp); strcat(commandArray, ";");
   itoa(mapCoordinate(x), temp, 10);
   strcat(commandArray, temp); strcat(commandArray, ";");
   itoa(-mapCoordinate(y), temp, 10);
   strcat(commandArray, temp); 
 }
 int mapCoordinate(int coordinate){
   if(coordinate >= 0 && coordinate <= 255) return -1;
   else if(coordinate >= 256 && coordinate <= 767) return 0;
   else if(coordinate >= 768 && coordinate <= 1024) return 1;
 }

And even a video with the delay: https://youtu.be/xttRqo-II8E