[Slow animations on safari]

hello guys,  i have problems with safari because my animations are very slow and  in  chrome is very  fast, Can someone help me with this ?

in this moment I use scrollMagic 

a example of my  code !!!

let animationParallax = new TimelineMax()
.to(".Somos__Header", 20, {y: "-140%", ease: Linear.easeNone})

this.somosScene = new ScrollMagic.Scene({
triggerElement: ".Somos__Container" ,
duration: '50%',
offset: -300
})
.setTween(animationParallax)
.addTo(controller)

 

url: http://2017.monoku.com/

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