Index: wp-admin/includes/plugin-install.php
===================================================================
--- wp-admin/includes/plugin-install.php	(revision 19707)
+++ wp-admin/includes/plugin-install.php	(working copy)
@@ -239,7 +239,13 @@
 function install_plugin_information() {
 	global $tab;
 
-	$api = plugins_api('plugin_information', array('slug' => stripslashes( $_REQUEST['plugin'] ) ));
+	$api = plugins_api('plugin_information', array(
+												'slug' => stripslashes( $_REQUEST['plugin'] ),
+												'fields' => array(
+															'compatibility' => false,
+															'tags' => false
+															)
+												));
 
 	if ( is_wp_error($api) )
 		wp_die($api);