Why is my game’s lag get more worse when I play it further?

This is a prototype game about a goose who has to keep the temperature right or else the world ends. I’m trying to add in more mechanics in but I really can’t move on because the lag gets worse the more you play. Is there anything I can reduce or simplify?

let gabHeatColor = 0;
let gabThermoStat = 30;

var gooseHonk;
let laserHue = 0;

//denaplesk2 game timer
let timerValue = 30;
let startButton;

let timerBar = 0; //will appear @ top screen

function preload() {
  soundFormats('wav');
  gooseHonk = loadSound('spacejoe_bird-honk-2.wav');
}

function mousePressed() { //plays goose honk
  gooseHonk.play();
}

function setup() {
  createCanvas(windowWidth, windowHeight);
  // textAlign(CENTER);
  setInterval(timeIt, 1000);
}

function timeIt() {
  if (timerValue > 0) {
    timerValue--;
  }
}

function draw() {
  // frameRate(20);
  background(140, 140, 72);
  strokeWeight(0);
  
  fill(107, 94, 43); //floor background
  rect(0, windowHeight/1.3, windowWidth, windowHeight);
  
  fill(140, 213, 237); //window
  rect(windowWidth/3, windowHeight/7, 200, 450);
  
  //timer > winstate or gameover
  fill(0);
  if (timerValue <= 60) {
    text(timerValue + " SECONDS", width / 3, height / 10);
  } else {
    text(timerValue + " SECONDS, You WIN!", width / 3, height / 10);
    frameRate(0);
  } 
  
  if (gabThermoStat > 100) {
    gabThermoStat = 999;
    text("oops world heated", 50, 50);
    text("Oh no SECONDS, You LOSE!", width / 3, height / 10);
  } if (gabThermoStat <= 0) {
    gabThermoStat = -99;
    textSize(windowWidth/20);
    text("oops world frozen", 50, 50);
    text("NO SECONDS, You LOSE!", width / 3, height / 10);
    frameRate(2);
  }
  
  gabFan();
  gabGooseBod();
}

function gabGooseBod() {
  push(); //goose neck
  stroke(240);
  strokeWeight(30);
  line(0, windowHeight, mouseX-(mouseX/2), mouseY-25);
  pop();
  
  fill(240); //goose torso
  circle(0, windowHeight, 300);
  fill(300); //gooseHead
  rect(mouseX-(mouseX/2), mouseY-25, 50, 50); 
  circle(mouseX-(mouseX/2), mouseY-25, 100);
  fill(0);
  circle(mouseX-(mouseX/2), mouseY-25, 40); //eye
  fill(255,166,0);
  circle(mouseX-(mouseX/2)+50, mouseY, 50); //goose bill & mouth
  
  fill(300,0,0,laserHue);
  rect(mouseX-(mouseX/2), mouseY-40, mouseX-(mouseX/2), 30);
  if (mouseIsPressed === true) {
    laserHue = laserHue + 40;
  } else {
    laserHue = 0;
  }
}

function gabFan() {
  fill(220);
  rect(windowWidth/2,windowWidth/2,windowWidth/2,windowHeight/2);
  
  fill(0);
  textSize(windowWidth/20);
  text("Thermostat: " + gabThermoStat + "/100", windowWidth/2+25, windowHeight/2)
  gabThermoStat = gabThermoStat + 1;
  
  let button0 = createButton("-1"); //heats up
  // button.mouseClicked(fanButton[0]);
  button0.size(90, 70);
  button0.position(windowWidth/2, windowHeight/2);
  button0.style("font-size", "48px");
  
  let button3 = createButton("3"); //3 button
  button3.mousePressed(fanButton);
  print(button3.mousePressed(fanButton));
  button3.size(90, 70);
  button3.position(windowWidth/2, windowHeight/2 + 70);
  button3.style("font-size", "48px");
  
  let button2 = createButton("2"); //2 button
  // button.mouseClicked(fanButton[1]);
  button2.size(90, 70);
  button2.position(windowWidth/2, windowHeight/2 + 140);
  button2.style("font-size", "48px");
  
  let button1 = createButton("1"); //1 button
  // button.mouseClicked(fanButton[2]);
  button1.size(90, 70);
  button1.position(windowWidth/2, windowHeight/2 + 210);
  button1.style("font-size", "48px");
}

function fanButton() {
  gabThermoStat = gabThermoStat - 20;
  print("-20, temp lowered");
}

I was thinking it was the timer slowing things down but the lag still happened. Then maybe it could be the goose’s neck? Nope not that.