cost of different approaches to drawing animated graphics

I had a bit of code that was repeatedly doing:

function d() {
  var img = require("heatshrink").decompress(atob(".­.."));
 g.drawImage(img, 80, 80, {scale:3,  rotate:radians(course)} );
}

when what was effective / needed was:

var img = require("heatshrink").decompress(atob(".­.."));
 
function d() {
  g.drawImage(img, 80, 80, {scale:3,  rotate:radians(course)} );
}