diff --git a/app/display/gimpstatusbar.c b/app/display/gimpstatusbar.c
index 9b949e0a96..cd604d11cf 100644
--- a/app/display/gimpstatusbar.c
+++ b/app/display/gimpstatusbar.c
@@ -1815,27 +1815,6 @@ gimp_statusbar_queue_pos_redraw (gpointer data)
   shell = statusbar->shell;
   image = gimp_display_get_image (shell->display);
 
-#ifdef GDK_WINDOWING_QUARTZ
-/*
- * This optimization dramatically improves drawing refresh speed on Macs with retina
- * displays, which is all macbook pros since 2016 and macbook airs since 2018 and
- * running Big Sur (released Nov 2020) or higher.
- * https://gitlab.gnome.org/GNOME/gimp/-/issues/7690
- *
- * only redraw max every 333ms and only redraw when the other two decorations aren't
- * redrawing (cursor_label, horizontal and vertical rulers). This will keep the draw
- * rects of limited size.
- */
-  gint64 curr_time     = g_get_monotonic_time ();
-  gint64 mod_time      = curr_time % G_TIME_SPAN_SECOND;
-  gint   timeslice_num = mod_time / (G_TIME_SPAN_SECOND / 9) % 3;
-
-  if (curr_time - statusbar->last_frame_time < G_TIME_SPAN_SECOND / 3 || timeslice_num != 0)
-    return G_SOURCE_CONTINUE;
-
-  statusbar->last_frame_time = curr_time;
-#endif
-
   if (image)
     {
       image_width  = gimp_image_get_width  (image);
diff --git a/app/display/gimpstatusbar.h b/app/display/gimpstatusbar.h
index 50269161d2..3cab648dda 100644
--- a/app/display/gimpstatusbar.h
+++ b/app/display/gimpstatusbar.h
@@ -44,15 +44,6 @@ struct _GimpStatusbar
   GHashTable          *context_ids;
   guint                seq_context_id;
 
-#ifdef GDK_WINDOWING_QUARTZ
-  /*
-   * This optimization dramatically improves drawing refresh speed on Macs with retina
-   * displays, which is all macbook pros since 2016 and macbook airs since 2018 and
-   * running Big Sur (released Nov 2020) or higher.
-   * https://gitlab.gnome.org/GNOME/gimp/-/issues/7690
-   */
-  gint64               last_frame_time;
-#endif
   guint                statusbar_pos_redraw_idle_id;
   gchar               *cursor_string_todraw;
   gchar               *cursor_string_last;
diff --git a/libgimpwidgets/gimpruler.c b/libgimpwidgets/gimpruler.c
index 670ced1e7d..27e9063951 100644
--- a/libgimpwidgets/gimpruler.c
+++ b/libgimpwidgets/gimpruler.c
@@ -77,16 +77,6 @@ struct _GimpRulerPrivate
   PangoLayout     *layout;
 
   GList           *track_widgets;
-
-#ifdef GDK_WINDOWING_QUARTZ
-  /*
-   * This optimization dramatically improves drawing refresh speed on Macs with retina
-   * displays, which is all macbook pros since 2016 and macbook airs since 2018 and
-   * running Big Sur (released Nov 2020) or higher.
-   * https://gitlab.gnome.org/GNOME/gimp/-/issues/7690
-   */
-  gint64           last_frame_time;
-#endif
 };
 
 #define GET_PRIVATE(obj) (((GimpRuler *) (obj))->priv)
@@ -1274,31 +1264,6 @@ gimp_ruler_idle_queue_pos_redraw (gpointer data)
   GimpRuler        *ruler     = data;
   GimpRulerPrivate *priv      = GET_PRIVATE (ruler);
 
-#ifdef GDK_WINDOWING_QUARTZ
-  /*
-   * This optimization dramatically improves drawing refresh speed on Macs with retina
-   * displays, which is all macbook pros since 2016 and macbook airs since 2018 and
-   * running Big Sur (released Nov 2020) or higher.
-   * https://gitlab.gnome.org/GNOME/gimp/-/issues/7690
-   *
-   * only redraw max every 333ms and only redraw when the other two decorations aren't
-   * redrawing (cursor_label, horizontal and vertical rulers). This will keep the draw
-   * rects of limited size.
-   */
-  gint64 curr_time     = g_get_monotonic_time ();
-  gint64 mod_time      = curr_time % G_TIME_SPAN_SECOND;
-  gint   timeslice_num = mod_time / (G_TIME_SPAN_SECOND / 9) % 3;
-
-  if (curr_time - priv->last_frame_time < G_TIME_SPAN_SECOND / 3)
-    return G_SOURCE_CONTINUE;
-  if (priv->orientation == GTK_ORIENTATION_HORIZONTAL && timeslice_num != 1)
-    return G_SOURCE_CONTINUE;
-  if (priv->orientation == GTK_ORIENTATION_VERTICAL   && timeslice_num != 2)
-    return G_SOURCE_CONTINUE;
-
-  priv->last_frame_time = curr_time;
-#endif
-
   gimp_ruler_queue_pos_redraw (ruler);
 
   /*