diff --git a/docs/theme/stylesheets/extra.css b/docs/theme/stylesheets/extra.css
index 94e1aaeb4..e959b7bee 100644
--- a/docs/theme/stylesheets/extra.css
+++ b/docs/theme/stylesheets/extra.css
@@ -63,4 +63,19 @@ body hr {
 
 .md-typeset a {
   color: var(--md-accent-fg-color--dark);
+}
+
+/* Replacement for `body { background-attachment: fixed; }`, which
+   has performance issues when scrolling on large displays. */
+body::before {
+    content: ' ';
+    position: fixed;
+    width: 100%;
+    height: 100%;
+    top: 0;
+    left: 0;
+    background-color: #f8f8f8;
+    background: url(../img/grid.png) repeat-x;
+    will-change: transform;
+    z-index: -1;
 }
\ No newline at end of file