Nextion Callback Interrupt

Other Hardware Displays
1

Hi guys,

Just a mental block: I made a circuit that when i press a button on page0, it switch an IO port to LOW:

...
//=============CONFIGURAÇÕES============
void b0PopCallback(void *ptr)
{
  digitalWrite(22, LOW);
}  

void setup ()
{
  nexInit();
  Serial2.begin(9600);
  Wire.begin();
  b0.attachPop(b0PopCallback, &b0);
  page0.attachPush(page0PushCallback);
  page1.attachPush(page1PushCallback);
  page2.attachPush(page2PushCallback);
  page3.attachPush(page3PushCallback);
  page4.attachPush(page4PushCallback);
  page5.attachPush(page5PushCallback);
  page6.attachPush(page6PushCallback);
  pinMode(22, OUTPUT);
  digitalWrite(22, HIGH);
}
//======================================

//=============PROGRAMA PRINCIPAL=======
void loop()
{
  nexLoop(nex_listen_list);
}
//======================================
...

So far, so good. But when i put more functions on loop, my button b0 doesn't respond on time. I have to push several times so it can sync and send the callback function.

...
//=============PROGRAMA PRINCIPAL=======
void loop()
{
  digitalClockDisplay();
  if(CurrentPage == 6)
  {
    temp_umid();
  }
  nexLoop(nex_listen_list);
}
//======================================
...

I have tried a lot of solutions that i found here:

  1. increase baud rate;
  2. call functions only in the current page;
  3. Put a delay on loop;
  4. Put a timer before calling the function:
...
 if(isPage0)
    {
      if(millis() - previousMillis >= maxTime)
      {
        previousMillis = millis();
        updateDHTInfo(); //pega os valores do DHT22 e então manda para o NEXTION
      }      
    }
...

But nothing works.
So please, if anyone know what to do or a link with some other solution, i'll be very grateful.

Regards,
Jimmy