diff --git a/application/models/system/Message_model.php b/application/models/system/Message_model.php
index e0a185f9b..19129b606 100644
--- a/application/models/system/Message_model.php
+++ b/application/models/system/Message_model.php
@@ -242,74 +242,89 @@ class Message_model extends DB_Model
 	 */
 	public function getMessagesForTable($person_id, $offset, $limit)
 	{
-		$sql_base = "
-			SELECT
+		$sql = <<<EOSQL
+			with filtered_messages as (
+				select
+					m.message_id, m.person_id as sender_id, mr.person_id as recipient_id
+				from
+					public.tbl_msg_message m
+				join
+					public.tbl_msg_recipient mr on mr.message_id = m.message_id
+				where
+					m.person_id = ?
+				group by
+					m.message_id, m.person_id, mr.person_id
+
+				union all
+
+				select
+					m.message_id, m.person_id as sender_id, mr.person_id as recipient_id
+				from
+					public.tbl_msg_message m
+				join
+					public.tbl_msg_recipient mr on mr.message_id = m.message_id
+				where
+					mr.person_id = ?
+				group by
+					m.message_id, m.person_id, mr.person_id
+
+			), lastmsgstatus as (
+				select
+					ms.*
+				from (
+						select
+							s.message_id, s.person_id, MAX(s.insertamum) as lastinserted
+						from
+							public.tbl_msg_status s
+						group by
+							s.message_id, s.person_id
+					) ls
+				join
+					public.tbl_msg_status ms on ms.message_id = ls.message_id and ms.person_id = ls.person_id and ms.insertamum = ls.lastinserted
+			)
+
+			select
+				(select count(*) from filtered_messages) as total_msgs,
 				m.message_id AS message_id,
 				m.subject AS subject,
 				m.body AS body,
 				m.insertamum AS insertamum,
 				m.relationmessage_id AS relationmessage_id,
-				(SELECT COALESCE(titelpre,'') || ' ' || COALESCE(vorname,'') || ' ' || COALESCE(nachname,'') || ' ' || COALESCE(titelpost,'') FROM public.tbl_person WHERE person_id = m.person_id) as sender,
-				(SELECT COALESCE(titelpre,'') || ' ' || COALESCE(vorname,'') || ' ' || COALESCE(nachname,'') || ' ' || COALESCE(titelpost,'') FROM public.tbl_person WHERE person_id = r.person_id) as recipient,
-				m.person_id as sender_id,
-				r.person_id as recipient_id,
-				MAX(ss.status) as status,
-				MAX(ss.insertamum) as statusdatum
-			FROM public.tbl_msg_message m
-				 JOIN public.tbl_msg_recipient r USING(message_id)
-				 JOIN public.tbl_msg_status ss ON(r.message_id = ss.message_id AND ss.person_id = r.person_id)
-			WHERE m.person_id = ?
-			GROUP BY m.message_id, m.subject, m.body, m.insertamum, m.relationmessage_id, sender, recipient, sender_id, recipient_id
-			UNION ALL
-			SELECT
-				m.message_id AS message_id,
-				m.subject AS subject,
-				m.body AS body,
-				m.insertamum AS insertamum,
-				m.relationmessage_id AS relationmessage_id,
-				(SELECT COALESCE(titelpre,'') || ' ' || COALESCE(vorname,'') || ' ' || COALESCE(nachname,'') || ' ' || COALESCE(titelpost,'') FROM public.tbl_person WHERE person_id = m.person_id) as sender,
-				(SELECT COALESCE(titelpre,'') || ' ' || COALESCE(vorname,'') || ' ' || COALESCE(nachname,'') || ' ' || COALESCE(titelpost,'') FROM public.tbl_person WHERE person_id = r.person_id) as recipient,
-				m.person_id as sender_id,
-				r.person_id as recipient_id,
-				MAX(ss.status) as status,
-				MAX(ss.insertamum) as statusdatum
-			FROM public.tbl_msg_recipient r
-				 JOIN public.tbl_msg_status ss USING(message_id, person_id)
-				 JOIN public.tbl_msg_message m USING(message_id)
-			WHERE r.person_id = ?
-			GROUP BY m.message_id, m.subject, m.body, m.insertamum, m.relationmessage_id, sender, recipient, sender_id, recipient_id
-				 ";
-		$sql = "
-			SELECT COUNT(*) AS count FROM (
-				" . $sql_base . "
-			) a
-				 ";
-
-		$parametersArray = array($person_id, $person_id);
-
-		$count = $this->execQuery($sql, $parametersArray);
-
-		if (isError($count))
-			return $count;
-
-		$count = ceil(current(getData($count))->count/$limit);
-		$sql = "
-			SELECT * FROM (
-				" . $sql_base . "
-			) a
-			ORDER BY insertamum DESC
-			LIMIT ?
-			OFFSET ?
-				 ";
+				(COALESCE(ps.titelpre,'') || ' ' || COALESCE(ps.vorname,'') || ' ' || COALESCE(ps.nachname,'') || ' ' || COALESCE(ps.titelpost,'')) as sender,
+				(COALESCE(pr.titelpre,'') || ' ' || COALESCE(pr.vorname,'') || ' ' || COALESCE(pr.nachname,'') || ' ' || COALESCE(pr.titelpost,'')) as recipient,
+				fm.sender_id,
+				fm.recipient_id,
+				ms.status,
+				ms.insertamum as statusdatum
+			from
+				filtered_messages fm
+			join
+				public.tbl_msg_message m on fm.message_id = m.message_id
+			join
+				lastmsgstatus ms on fm.message_id = ms.message_id and fm.recipient_id = ms.person_id
+			left join
+				public.tbl_person ps on ps.person_id = fm.sender_id
+			left join
+				public.tbl_person pr on pr.person_id = fm.recipient_id
+			order by
+				m.insertamum DESC
+			limit ?
+			offset ?;
+EOSQL;
 
 		$parametersArray = array($person_id, $person_id, $limit, $offset);
 
+		$count = 0;
 		$data = $this->execQuery($sql, $parametersArray);
 
 		if (isError($data))
 			return $data;
 
 		$data = getData($data);
+		if($data)
+		{
+			$count = ceil($data[0]->total_msgs / $limit);
+		}
 
 		return success(['data' => $data, 'count' => $count]);
 	}
diff --git a/public/js/components/Messages/Details/TableMessages.js b/public/js/components/Messages/Details/TableMessages.js
index a55ddec63..6a4cf5ca0 100644
--- a/public/js/components/Messages/Details/TableMessages.js
+++ b/public/js/components/Messages/Details/TableMessages.js
@@ -243,6 +243,7 @@ export default {
 						title: this.$p.t('global', 'aktionen')
 												});
 						*/
+						this.$emit('tabulator_tablebuilt');
 					}
 				},
 				{
diff --git a/public/js/components/Messages/Messages.js b/public/js/components/Messages/Messages.js
index 1f9afcb9e..5e247ddb5 100644
--- a/public/js/components/Messages/Messages.js
+++ b/public/js/components/Messages/Messages.js
@@ -56,6 +56,7 @@ export default {
 	},
 	data() {
 		return {
+			tablebuilt: false,
 			isVisibleDiv: false,
 			messageId: null
 		}
@@ -139,8 +140,10 @@ export default {
 		},
 		resetMessageId(){
 			this.messageId = null;
+		},
+		tableBuilt: function() {
+			this.tablebuilt = true;
 		}
-
 	},
 	template: `
 	<div class="core-messages h-100 pb-3">
@@ -155,6 +158,7 @@ export default {
 		</form>
 
 		<message-modal
+			v-if="tablebuilt"
 			ref="modalMsg"
 			:type-id="typeId"
 			:id="id"
@@ -166,8 +170,9 @@ export default {
 		</message-modal>
 		
 		<!--in same page-->
-		<div v-show="isVisibleDiv" class="overflow-auto m-3" style="max-height: 500px; border: 1px solid #ccc;">
+		<div v-if="isVisibleDiv" class="overflow-auto m-3" style="max-height: 500px; border: 1px solid #ccc;">
 			<form-only
+				v-if="tablebuilt"
 				ref="templateNewDivMessage"
 				:type-id="typeId"
 				:id="id"
@@ -187,6 +192,7 @@ export default {
 				:openMode="openMode"
 				@newMessage="handleMessage"		
 				@replyToMessage="handleMessage"
+				@tabulator_tablebuilt="tableBuilt"
 			>		
 			</table-messages>
 		</div>
diff --git a/system/dbupdate_3.4.php b/system/dbupdate_3.4.php
index 793930243..4ddb38203 100644
--- a/system/dbupdate_3.4.php
+++ b/system/dbupdate_3.4.php
@@ -91,6 +91,7 @@ require_once('dbupdate_3.4/69065_Projektarbeiten_Firmen_verwalten.php');
 require_once('dbupdate_3.4/68744_StV_settings.php');
 require_once('dbupdate_3.4/62889_reihungstest_ueberwachung_mit_constructor.php');
 require_once('dbupdate_3.4/71399_dashboard_update_widget_paths.php');
+require_once('dbupdate_3.4/71645_studvw_messagetab_ladezeit.php');
 
 // *** Pruefung und hinzufuegen der neuen Attribute und Tabellen
 echo '<H2>Pruefe Tabellen und Attribute!</H2>';
diff --git a/system/dbupdate_3.4/71645_studvw_messagetab_ladezeit.php b/system/dbupdate_3.4/71645_studvw_messagetab_ladezeit.php
new file mode 100644
index 000000000..4ad88fba9
--- /dev/null
+++ b/system/dbupdate_3.4/71645_studvw_messagetab_ladezeit.php
@@ -0,0 +1,28 @@
+<?php
+if (! defined('DB_NAME')) exit('No direct script access allowed');
+
+if ($result = $db->db_query("SELECT * FROM pg_class WHERE relname='idx_tbl_msg_message_person_id'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = "CREATE INDEX idx_tbl_msg_message_person_id ON public.tbl_msg_message USING btree (person_id)";
+
+		if (! $db->db_query($qry))
+			echo '<strong>idx_tbl_msg_message_person_id: ' . $db->db_last_error() . '</strong><br>';
+		else
+			echo 'Index idx_tbl_msg_message_person_id angelegt<br>';
+	}
+}
+
+if ($result = $db->db_query("SELECT * FROM pg_class WHERE relname='idx_tbl_msg_recipient_person_id'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = "CREATE INDEX idx_tbl_msg_recipient_person_id ON public.tbl_msg_recipient USING btree (person_id)";
+
+		if (! $db->db_query($qry))
+			echo '<strong>idx_tbl_msg_recipient_person_id: ' . $db->db_last_error() . '</strong><br>';
+		else
+			echo 'Index idx_tbl_msg_recipient_person_id angelegt<br>';
+	}
+}