image is flikering on scroll on mobile devices - css

Question

body{
background-color: #000;
height: 100vh;
}
section {
width: 100%;
height: 100%;
}
#section1 {
background-color: #f0f0f0;
}
#bubbles1, #bubbles2{
width: 100%;
height: 100%;
top: 0;
left: 0;
z-index: -1;
}
#bubbles1{
background: url('img/greencat.png') 60% 50% no-repeat fixed;
background-color: #f0f0f0;
}
#bubbles2{
background: url('img/catb.png') 60% 50% no-repeat fixed;
position: fixed;
-webkit-backface-visibility: hidden;
}
#fish{
background: transparent url('img/textgreen.png') no-repeat bottom left fixed;
height: 100%;
width: 100%;
position: absolute;
top: 0px;
}
#fish1{
background: transparent url('img/textblue.png') no-repeat bottom left fixed;
height: 100%;
width: 100%;
/* position: absolute;*/
top: 0px;
}
#media screen and (max-width: 860px){
ound-image: url('img/greencat-mobile.png');
background-size: 250vw 100vh;
background-position: 53% 50%;
}
#bubbles2{
background-image: url('img/catb-mobile.png');
background-size: 250vw 100vh;
background-position: 53% 50%;
position: fixed;
-webkit-backface-visibility: hidden;
}
#fish{
background: transparent url('http://www.intomorrow.com/wp-content/uploads/2016/06/Barnsley-House-Spa-2-844x800.jpg') no-repeat 3% 78% fixed;
position: absolute;
}
#fish1{
background: transparent url('http://www.intomorrow.com/wp-content/uploads/2016/08/Fairmont-Pittsburgh-30-844x800.jpg') no-repeat 3% 78% fixed;
}
}
<section id="section1">
<div id="bubbles1"></div>
<div id="fish"></div>
</section>
<section id="section2">
<div id="bubbles2"></div>
<div id="fish1"></div>
</section>
This is my html and css, the problem is when i scroll on mobile devices than image is flikering, not stick to the fixed position. I gave the position fixed in css but it is not working. I checked on Android, Windows and Apple devices.
Android : first image moved up on scrolling
Windows : first image displaying proper but when i scroll for second image than its flikering
Apple : display white background insted of image, second image visible but its flikering on scroll

Answer 1

Most mobile devices have a delay in updating the background position after scrolling a page with fixed backgrounds.
i came across this problem too.
i know 3 possible fixes for this
1. you can try using a pseudo-element and add background fixed to it
2. you can make another div inside the fixed div. and add background to that div
3. use -webkit-transform: translateZ(0x); transform:translateZ(0) to force hardware acceleration
see more here
http://caniuse.com/#search=background-attachment
Background size on iOS
let me know if it helps