I have a simple sketch that tests input from 2 touch sensors and outputs to 2 relays (if a sensor is touched, trigger the respective momentary relay).  It has been a bit quirky to say the least.  perhaps I need to adjust delays or adjust sensitivity of the touch sensors, but I feel that maybe the coding could be more efficient.  Would using a WHILE or DOWHILE loop work better than an IF statement for this?  It seems like there is a timing issue between the relay and the sensor.  When I hit the sensor, the relay triggers immediately, but then it doesn't shut off right away.  Also if both sensors are made at the same time, I am seeing only 1 relay trigger or neither.  I am trying to eliminate the code as my failure point. I have the code printing to the serial monitor to show "Sensor 1 touched" or "Sensor 2 touched", and sometimes that triggers once and sometimes it will print multiple times.

    int touchPin1 = 2; //Touch sensor 1
    int touchPin2 = 4; //Touch sensor 2
    int val_1 = 0; 
    int val_2 = 0; 
    int relayPin1 = 8; //Relay 1
    int relayPin2 = 9; //Relay 2
    
    void setup() 
    {
      Serial.begin(9600);
      pinMode(touchPin1, INPUT); 
      pinMode(touchPin2, INPUT);
      pinMode(relayPin1, OUTPUT);
      pinMode(relayPin2, OUTPUT);
    
    }
    
    void loop() {
      digitalWrite(relayPin1, LOW);
      digitalWrite(relayPin2, LOW);
      val_1 = digitalRead(touchPin1);
      val_2 = digitalRead(touchPin2);  
      if(val_1 ==1)
      {
      Serial.println("Pad 1 Touched");
      digitalWrite(relayPin1, HIGH);
      }
      if(val_2 ==1)
      {
      Serial.println("Pad 2 Touched");
      digitalWrite(relayPin2, HIGH);
      }
      delay(100);
      //Serial.println();
    }
  Basically I am asking if there is a more efficient way to code this.

Touch Sensors: [Adafruit Standalone Momentary Capacitive Touch Sensor Breakout Adafruit Part Number: 1374][1] 

Relays: [SunFounder Relay Module for Arduino and Raspberry Pi 5V DC Trigger by HIGHLO (HIGH Trigger)][2] 


  [1]: https://www.amazon.com/gp/product/B00QSJ1FW4/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1
  [2]: https://www.amazon.com/gp/product/B0151F3A9Q/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1