diff --git a/lights.js b/lights.js
index 59409da..923c8ab 100644
--- a/lights.js
+++ b/lights.js
@@ -22,11 +22,11 @@ export function set_pattern(pat) {
 
 function tick_pattern() {
   // do the parsing stuff here
-  var r = Math.floor(Math.random() * 100)
-  var g = Math.floor(Math.random() * 100);
-  var b = Math.floor(Math.random() * 100);
 
   for (let i = 0; i < cfg.leds; i++) {
+    var r = Math.floor(Math.random() * 100)
+    var g = Math.floor(Math.random() * 100);
+    var b = Math.floor(Math.random() * 100);
     next_pattern[i] = ((r << 8) + g) << 8 + b;
   }
 }
@@ -43,7 +43,7 @@ export function tick() {
     tick_pattern();
   }
   ws281x.render(pixels);
-  ws281x.sleep(10);
+  ws281x.sleep(500);
 }
 
 function fade(index) {