diff --git a/src/applications/home/application/PhabricatorHomeApplication.php b/src/applications/home/application/PhabricatorHomeApplication.php
--- a/src/applications/home/application/PhabricatorHomeApplication.php
+++ b/src/applications/home/application/PhabricatorHomeApplication.php
@@ -2,6 +2,7 @@
 
 final class PhabricatorHomeApplication extends PhabricatorApplication {
 
+  private $quickItems;
   const DASHBOARD_DEFAULT = 'dashboard:default';
 
   public function getBaseURI() {
@@ -42,6 +43,11 @@
     PhabricatorUser $user,
     PhabricatorController $controller = null) {
 
+    $quick_items = $this->getQuickActionItems($user);
+    if (!$quick_items) {
+      return array();
+    }
+
     $items = array();
     $create_id = celerity_generate_unique_node_id();
 
@@ -73,7 +79,7 @@
     PhabricatorUser $viewer,
     PhabricatorController $controller = null) {
 
-    $items = PhabricatorQuickActions::loadMenuItemsForUser($viewer);
+    $items = $this->getQuickActionItems($viewer);
 
     $view = null;
     if ($items) {
@@ -94,4 +100,12 @@
     return $view;
   }
 
+  private function getQuickActionItems(PhabricatorUser $viewer) {
+    if ($this->quickItems === null) {
+      $items = PhabricatorQuickActions::loadMenuItemsForUser($viewer);
+      $this->quickItems = $items;
+    }
+    return $this->quickItems;
+  }
+
 }
diff --git a/src/applications/people/storage/PhabricatorUser.php b/src/applications/people/storage/PhabricatorUser.php
--- a/src/applications/people/storage/PhabricatorUser.php
+++ b/src/applications/people/storage/PhabricatorUser.php
@@ -486,7 +486,10 @@
       $settings = array();
     }
 
-    $defaults = PhabricatorSetting::getAllEnabledSettings($this);
+    // NOTE: To slightly improve performance, we're using all settings here,
+    // not just settings that are enabled for the current viewer. It's fine to
+    // get the value of a setting that we wouldn't let the user edit in the UI.
+    $defaults = PhabricatorSetting::getAllSettings();
 
     if (array_key_exists($key, $settings)) {
       $value = $settings[$key];
diff --git a/src/applications/settings/setting/PhabricatorTranslationSetting.php b/src/applications/settings/setting/PhabricatorTranslationSetting.php
--- a/src/applications/settings/setting/PhabricatorTranslationSetting.php
+++ b/src/applications/settings/setting/PhabricatorTranslationSetting.php
@@ -26,6 +26,11 @@
       'Choose which language you would like the Phabricator UI to use.');
   }
 
+  public function assertValidValue($value) {
+    $locales = PhutilLocale::loadAllLocales();
+    return isset($locales[$value]);
+  }
+
   protected function getSelectOptionGroups() {
     $is_serious = PhabricatorEnv::getEnvConfig('phabricator.serious-business');
     $locales = PhutilLocale::loadAllLocales();