Don't waste time on recommendations in combined mode.

module/VuFind/src/VuFind/Controller/AbstractSearch.php

@@ -210,7 +210,10 @@ class AbstractSearch extends AbstractBase
 
         $results = $this->getResultsManager()->get($this->searchClassId);
         $params = $results->getParams();
-        $params->recommendationsEnabled(true);
+
+        // Enable recommendations unless explicitly told to disable them:
+        $noRecommend = $this->params()->fromQuery('noRecommend', false);
+        $params->recommendationsEnabled(!$noRecommend);
 
         // Send both GET and POST variables to search class:
         $params->initFromRequest(

module/VuFind/src/VuFind/Controller/CombinedController.php

@@ -210,5 +210,8 @@ class CombinedController extends AbstractSearch
         // Apply limit setting, if any:
         $query = $this->getRequest()->getQuery();
         $query->limit = isset($settings['limit']) ? $settings['limit'] : null;
+
+        // Disable recommendations:
+        $query->noRecommend = 1;
     }
 }