Fire effect with phaser particles

// Demo at http://codepen.io/anon/pen/gbXoXm
var game = new Phaser.Game(800, 600, Phaser.AUTO);
game.state.add('main', {create: create});
game.state.start('main', true, false);
var emitter;

function create() {
  
  var pSize = game.world.width / 12.5;
  var bmpd = game.add.bitmapData(pSize, pSize);
  // Create a radial gradient, yellow-ish on the inside, orange
  // on the outside. Use it to draw a circle that will be used
  // by the FireParticle class.
  var grd = bmpd.ctx.createRadialGradient(
    pSize / 2, pSize /2, 2,
    pSize / 2, pSize / 2, pSize * 0.5);
  grd.addColorStop(0, 'rgba(193, 170, 30, 0.6)');
  grd.addColorStop(1, 'rgba(255, 100, 30, 0.1)');
  bmpd.ctx.fillStyle = grd;
  
  bmpd.ctx.arc(pSize / 2, pSize / 2 , pSize / 2, 0, Math.PI * 2);
  bmpd.ctx.fill();
  
  game.cache.addBitmapData('flame', bmpd);
  
  // Generate 100 particles
  emitter = game.add.emitter(game.world.centerX, game.world.height, 100);
  emitter.width = 3 * pSize;
  emitter.particleClass = FireParticle;
  // Magic happens here, bleding the colors of each particle
  // generates the bright light effect
  emitter.blendMode = PIXI.blendModes.ADD;
  emitter.makeParticles();
  emitter.minParticleSpeed.set(-15, -80);
  emitter.maxParticleSpeed.set(15, -100);
  emitter.setRotation(0, 0);
  // Make the flames taller than they are wide to simulate the
  // effect of flame tongues
  emitter.setScale(3, 1, 4, 3, 12000, Phaser.Easing.Quintic.Out);
  emitter.gravity = -5;
  emitter.start(false, 3000, 50);
}

function FireParticle(game, x, y) {
  Phaser.Particle.call(this, game, x, y, game.cache.getBitmapData('flame'));
}

FireParticle.prototype = Object.create(Phaser.Particle.prototype);
FireParticle.prototype.constructor = FireParticle;

slow effect in mobile . tks