Slow Tweening

Tweening effect gets slower than expected.
This only happens in one system. Can’t reproduce in different system with same configuration.
This is the code:

var continueText = this.add.text(this.game.config.width / 2, 820, 'CLICK TO CONTINUE')
      .setFontSize(20)
      .setColor('#ffffff')
      .setOrigin(0.5)
      .setAlpha(0);

this.tweens.add({
      targets: continueText,
      alpha: 1,
      duration: 1000,
      yoyo: true,
      repeat: -1
});

using Phaser.WEBGL
Phaser version is 3.55.2