Double Tween Comparison

class Example extends Phaser.Scene
{
    constructor ()
    {
        super();
    }

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v410');
        this.load.script('gsap', 'js/gsap.js');
        this.load.image('block', 'assets/sprites/crate.png');
    }

    create ()
    {
        this.image1 = this.add.image(100, 200, 'block');
        this.image2 = this.add.image(100, 400, 'block');

        this.debug = this.add.graphics();

        this.debug.fillStyle(0xffffff);
        this.debug.fillRect(100-32, 0, 2, 600);
        this.debug.fillRect(700+32, 0, 2, 600);

        this.input.once('pointerdown', () => {

            let now = performance.now();
            let start = now;

            this.tweens.add({
                targets: this.image1,
                x: 700,
                delay: 500,
                repeat: 4,
                hold: 500,
                ease: 'linear',
                duration: 1000,
                onRepeat: () => {
                    let cur = performance.now();
                    console.log('Phaser repeat', cur - now);
                    now = cur;
                },
                onComplete: () => {
                    let cur = performance.now();
                    console.log('Phaser complete', cur);
                    console.log('Phaser duration', cur - start);
                },
            });

            gsap.to(this.image2, {
                x: 700,
                repeat: 8,
                repeatDelay: 0.5,
                duration: 0.5,
                ease: 'linear',
                onComplete: () => {
                    console.log('GSAP', performance.now());
                },
            });

        });
    }

    update ()
    {
        this.debug.fillRect(this.image1.x, this.image1.y, 2, 2);
        this.debug.fillRect(this.image2.x, this.image2.y, 2, 2);
    }
}

const config = {
    scale: { mode: Phaser.Scale.FIT },
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    backgroundColor: '#2d2d2d',
    parent: 'game-container',
    scene: Example
};

const game = new Phaser.Game(config);