var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { create: create });
var last;
var i = 0;
function create() {
//Maybe you have to set it even lower for your machine.
//It's related to the time Phaser needs to boot up.
//The tick stops being negative and behaves nearly normal for me at around 550 - 600ms
delay = 250;
foreverTimer = game.time.events.repeat(delay, 10, handleEvent, this);
last = Date.now();
console.log('create started', last);
}
function handleEvent() {
console.log('>> Tick', i, 'ms diff:', Date.now() - last);
last = Date.now();
i++;
}