Rotary Encoder problem with LCD Display

Program reads rotary encoder correctly without bouncing in this code:

int val = 0;
byte clkPin = 3;
byte dtPin = 2;
bool lastClk;
bool lastDt;
void setup() {
  pinMode(clkPin,INPUT);
  pinMode(dtPin,INPUT);
  lastClk = digitalRead(3);
  lastDt = digitalRead(2);
  val = 0;
  attachInterrupt(digitalPinToInterrupt(clkPin), clkRise, RISING);
  Serial.begin(9600);
}

void loop() {
}

void clkRise(){
      lastClk = HIGH;
      lastDt = digitalRead(dtPin);
      if(lastDt == LOW){
        val--;
        Serial.println(val);
        }  else{val++; Serial.println(val);}
        }

but when i use lcd to show the result, i get massive bounces (i think) in this code:

#include <LiquidCrystal_I2C.h>

#include <Wire.h>

LiquidCrystal_I2C lcd(0x27,20,4);
int val = 0;
byte clkPin = 3;
byte dtPin = 2;
bool lastClk;
bool lastDt;
void setup() {
  lcd.begin();
  pinMode(clkPin,INPUT);
  pinMode(dtPin,INPUT);
  lastClk = digitalRead(3);
  lastDt = digitalRead(2);
  val = 0;
  attachInterrupt(digitalPinToInterrupt(clkPin), clkRise, RISING);
  Serial.begin(9600);
  lcd.home();
}

void loop() {
  lcd.print(val);
}

void clkRise(){
      lastClk = HIGH;
      lastDt = digitalRead(dtPin);
      if(lastDt == LOW){
        val--;
        Serial.println(val);
        }  else{val++;}
        }

it increases and decreases by random numbers between 0-5.I use KY-040 R.E. it has built-in 10k pull up resistors.

This is what i use to debounce:

A or B pin of R.E--10k R----------------------------------Arduino INPUT PIN
                         |
                         |
                         =0.1uF C
                         |
                         ---------------------GND