diff --git a/sc/source/ui/app/inputwin.cxx b/sc/source/ui/app/inputwin.cxx
index 70dee0e453fd..802d2d7087e5 100644
--- a/sc/source/ui/app/inputwin.cxx
+++ b/sc/source/ui/app/inputwin.cxx
@@ -1141,6 +1141,10 @@ void ScInputBarGroup::NumLinesChanged()
 
 void ScInputBarGroup::TriggerToolboxLayout()
 {
+    // layout changes are expensive and un-necessary.
+    if (comphelper::LibreOfficeKit::isActive())
+        return;
+
     vcl::Window *w=GetParent();
     ScInputWindow &rParent = dynamic_cast<ScInputWindow&>(*w);
     SfxViewFrame* pViewFrm = SfxViewFrame::Current();