CPS is broken in MMAGR-Online… if anyone can fix it please help me…

Source code can be read here:

var moneyCounter = document.getElementById('counter');

function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds){
      break;
    }
  }
}


while (True) {
    sleep(1000)
    money = money + cps;
    moneyCounter.innerHTML = "Money: " + money;
}