diff --git a/typo3/sysext/core/Classes/Utility/RootlineUtility.php b/typo3/sysext/core/Classes/Utility/RootlineUtility.php
index 52dc33ce1d2b..20d55c1bea0a 100644
--- a/typo3/sysext/core/Classes/Utility/RootlineUtility.php
+++ b/typo3/sysext/core/Classes/Utility/RootlineUtility.php
@@ -284,7 +284,8 @@ protected function enrichWithRelationFields($uid, array $pageRecord)
 
         // @todo Remove this special interpretation of relations by consequently using RelationHandler
         foreach ($GLOBALS['TCA']['pages']['columns'] as $column => $configuration) {
-            if ($this->columnHasRelationToResolve($configuration)) {
+            // Ensure that only fields defined in $rootlineFields (and "addRootLineFields") are actually evaluated
+            if (array_key_exists($column, $pageRecord) && $this->columnHasRelationToResolve($configuration)) {
                 $configuration = $configuration['config'];
                 if ($configuration['MM']) {
                     /** @var $loadDBGroup \TYPO3\CMS\Core\Database\RelationHandler */
diff --git a/typo3/sysext/core/Documentation/Changelog/master/Important-84144-RootlineUtilityIsEnrichingOnlyProperlySelectedRelationalDatabaseFields.rst b/typo3/sysext/core/Documentation/Changelog/master/Important-84144-RootlineUtilityIsEnrichingOnlyProperlySelectedRelationalDatabaseFields.rst
new file mode 100644
index 000000000000..55daecf72a5b
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Important-84144-RootlineUtilityIsEnrichingOnlyProperlySelectedRelationalDatabaseFields.rst
@@ -0,0 +1,20 @@
+.. include:: ../../Includes.txt
+
+==================================================================================================
+Important: #84144 - RootlineUtility is enriching only properly selected relational database fields
+==================================================================================================
+
+See :issue:`84144`
+
+Description
+===========
+
+The main functionality for fetching the whole rootline of a page previously fetched all relational
+fields defined in TCA of a page record. This led to massive performance problems with large menus,
+as not all fields are necessary in root line records.
+
+Now, the rootline fetching only looks up relational data of fields which have been added to
+:php:`$GLOBALS[TYPO3_CONF_VARS][FE][addRootLineFields]`. The field `pages.media` is added per
+default since it is a predefined value.
+
+.. index:: Frontend, ext:frontend