diff --git a/bvplan/js/bvplan.js b/bvplan/js/bvplan.js
index ebc93c2..c46034d 100644
--- a/bvplan/js/bvplan.js
+++ b/bvplan/js/bvplan.js
@@ -8,7 +8,8 @@ window.onerror = function () {
 
 const elementCount = JSON.parse($("#data-element-count").text());
 const waitDelay = 15_000;
-const scrollDuration = elementCount * 200;
+const scrollDuration =
+  ($(document).height() / $(window).height()) * elementCount * 200;
 
 function reload() {
   window.location.reload();