Multiple SoundCloud Track Into 1 Script

I embed this SoundCloud script for my web.
But after I checked on Pingdom, GTmetrix, etc,
this script is very bloated and make my web slow.

<iframe width=”100%” height=”166″ scrolling=”no” frameborder=”no” src=”https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/238453028&color=ff5500&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false”></iframe&gt;

<iframe width=”100%” height=”166″ scrolling=”no” frameborder=”no” src=”https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/238453000&color=ff5500&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false”></iframe&gt;

<iframe width=”100%” height=”166″ scrolling=”no” frameborder=”no” src=”https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/238452989&color=ff5500&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false”></iframe&gt;

<iframe width=”100%” height=”166″ scrolling=”no” frameborder=”no” src=”https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/238452970&color=ff5500&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false”></iframe&gt;

How to combine these multiple track into 1 script?
I want embed multiple track but I don’t want bloated.

Note :
I tried SoundCloud shortcode but it doesn’t work.