I copied this from the <body> on the medical.html demo and put it on a normal page with the files and such but the load time is so quick
<body class="stretched" data-loader-html="<div id='css3-spinner-svg-pulse-wrapper'><svg id='css3-spinner-svg-pulse' version='1.2' height='210' width='550' xmlns='http://www.w3.org/2000/svg' viewport='0 0 60 60' xmlns:xlink='http://www.w3.org/1999/xlink'><path id='css3-spinner-pulse' stroke='#DE6262' fill='none' stroke-width='2' stroke-linejoin='round' d='M0,90L250,90Q257,60 262,87T267,95 270,88 273,92t6,35 7,-60T290,127 297,107s2,-11 10,-10 1,1 8,-10T319,95c6,4 8,-6 10,-17s2,10 9,11h210' /></svg></div>">
I barely get to see it for a second.