--- firewall_rules.php.orig	2021-08-02 18:45:47.668195000 +0000
+++ firewall_rules.php	2021-08-02 19:24:15.297799000 +0000
@@ -487,6 +487,42 @@
 // More efficient than looping through the list of separators on every row.
 $seprows = separator_rows($separators);
 
+/* Cache gateway status for this page load.
+ * See https://redmine.pfsense.org/issues/12174 */
+$gws = array();
+$gateways_status = return_gateways_status(true);
+foreach ($config['gateways']['gateway_group'] as $i => $gwgroup) {
+	foreach ($gwgroup['item'] as $x => $member) {
+		$membersplit = explode("|", $member);
+		$gwgroup['item'][$x] = $membersplit[0];
+	}
+	$content = "<table>\n";
+	$content .= "<thead>\n";
+	$content .= "<tr>\n";
+	$content .= "<th>" . gettext("Name") . "</th><th style='padding-left: 10px;'>" . gettext("Interface") . "</th>";
+	$content .= "<th style='padding-left: 10px;'>" . gettext("Gateway") . "</th></tr>\n";
+	$content .= "</thead>\n";
+	$content .= "<tbody>\n";
+	foreach ($gwgroup['item'] as $i => $gw) {
+		$content .= gateway_info_popup($gw, $gateways_status);
+	}
+	$content .= "</tbody>\n";
+	$content .= "</table>\n";
+	$gws[$gwgroup['name']] = $content;
+}
+$a_gateways = return_gateways_array();
+foreach ($a_gateways as $i => $gw) {
+	$content = "<table>\n";
+	$content .= "<thead>\n";
+	$content .= "<tr>\n";
+	$content .= "<th>" . gettext("Name") . "</th><th style='padding-left: 10px;'>" . gettext("Interface") . "</th>";
+	$content .= "<th style='padding-left: 10px;'>" . gettext("Gateway") . "</th></tr>\n";
+	$content .= gateway_info_popup($i, $gateways_status);
+	$content .= "</thead>\n";
+	$content .= "<tbody>\n";
+	$gws[$i] = $content;
+}
+
 foreach ($a_filter as $filteri => $filterent):
 
 	if (($filterent['interface'] == $if && !isset($filterent['floating'])) || (isset($filterent['floating']) && "FloatingRules" == $if)) {
@@ -820,7 +856,7 @@
 						</td>
 						<td>
 							<?php if (isset($filterent['gateway'])): ?>
-								<span data-toggle="popover" data-trigger="hover focus" title="<?=gettext('Gateways details')?>" data-content="<?=gateway_info_popup($filterent['gateway'])?>" data-html="true">
+								<span data-toggle="popover" data-trigger="hover focus" title="<?=gettext('Gateways details')?>" data-content="<?=$gws[$filterent['gateway']]?>" data-html="true">
 							<?php else: ?>
 								<span>
 							<?php endif; ?>