diff --git a/CHANGELOG.md b/CHANGELOG.md
index b48d253b2..3e7ce67a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ v0.18.1 (trunk)
  * Chats/Rooms redesign, common button to start/create a conversation
  * Improve the PresenceBuffer SQL requests
  * Automatically close SQL connections after a few seconds
+ * Conferences and Subscriptions multiple inserts SQL optimisations
 
 v0.18
 ---------------------------
diff --git a/app/Conference.php b/app/Conference.php
index c4c804d43..28136f6b8 100644
--- a/app/Conference.php
+++ b/app/Conference.php
@@ -22,6 +22,11 @@ class Conference extends Model
         'session_id'    => SESSION_ID
     ];
 
+    public static function saveMany(array $conferences)
+    {
+        return Conference::insert($conferences);
+    }
+
     public function session()
     {
         return $this->hasOne('App\Session');
@@ -185,4 +190,21 @@ class Conference extends Model
 
         return false;
     }
+
+    public function toArray()
+    {
+        $now = \Carbon\Carbon::now();
+        return [
+            'session_id' => $this->attributes['session_id'] ?? null,
+            'conference' => $this->attributes['conference']  ?? null,
+            'name' => $this->attributes['name'] ?? null,
+            'nick' => $this->attributes['nick'] ?? null,
+            'autojoin' => $this->attributes['autojoin'] ?? null,
+            'created_at' => $this->attributes['created_at'] ?? $now,
+            'updated_at' => $this->attributes['updated_at'] ?? $now,
+            'extensions' => $this->attributes['extensions'] ?? null,
+            'bookmarkversion' => $this->attributes['bookmarkversion'] ?? 0,
+            'notify' => $this->attributes['notify'] ?? 1,
+        ];
+    }
 }
diff --git a/app/Subscription.php b/app/Subscription.php
index 1279d56b4..b585b5be9 100644
--- a/app/Subscription.php
+++ b/app/Subscription.php
@@ -10,6 +10,11 @@ class Subscription extends Model
     protected $primaryKey = ['jid', 'server', 'node'];
     protected $guarded = [];
 
+    public static function saveMany(array $conferences)
+    {
+        return Subscription::insert($conferences);
+    }
+
     public function info()
     {
         return $this->hasOne('App\Info', 'server', 'server')
@@ -20,4 +25,19 @@ class Subscription extends Model
     {
         return $this->hasOne('App\Contact', 'id', 'jid');
     }
+
+    public function toArray()
+    {
+        $now = \Carbon\Carbon::now();
+        return [
+            'jid' => $this->attributes['jid'] ?? null,
+            'server' => $this->attributes['server']  ?? null,
+            'node' => $this->attributes['node'] ?? null,
+            'subid' => $this->attributes['subid'] ?? null,
+            'title' => $this->attributes['title'] ?? null,
+            'public' => $this->attributes['public'] ?? false,
+            'created_at' => $this->attributes['created_at'] ?? $now,
+            'updated_at' => $this->attributes['updated_at'] ?? $now,
+        ];
+    }
 }
diff --git a/app/widgets/Chat/Chat.php b/app/widgets/Chat/Chat.php
index fc3b94dc4..0e040a34e 100644
--- a/app/widgets/Chat/Chat.php
+++ b/app/widgets/Chat/Chat.php
@@ -651,6 +651,7 @@ class Chat extends \Movim\Widget\Base
             : $messages->whereIn('type', $this->_messageTypes);
 
         $messages = $messages->orderBy('published', 'desc')
+                             ->withCount('reactions')
                              ->take($this->_pagination)
                              ->get();
 
@@ -800,7 +801,7 @@ class Chat extends \Movim\Widget\Base
         $messagesRequest = clone $messagesQuery;
         $messagesCount = clone $messagesQuery;
 
-        $messages = $messagesRequest->orderBy('published', 'desc')->take($this->_pagination)->get();
+        $messages = $messagesRequest->withCount('reactions')->orderBy('published', 'desc')->take($this->_pagination)->get();
         $unreadsCount = $messagesCount->where('seen', false)->count();
 
         if ($unreadsCount > 0) {
@@ -957,7 +958,7 @@ class Chat extends \Movim\Widget\Base
         }
 
         // Reactions
-        if ($message->reactions()->count()) {
+        if ($message->reactions_count) {
             $message->reactionsHtml = $this->prepareReactions($message);
         }
 
diff --git a/lib/moxl/src/Xec/Action/Bookmark2/Get.php b/lib/moxl/src/Xec/Action/Bookmark2/Get.php
index c1f38c00f..5d00691ab 100644
--- a/lib/moxl/src/Xec/Action/Bookmark2/Get.php
+++ b/lib/moxl/src/Xec/Action/Bookmark2/Get.php
@@ -25,12 +25,16 @@ class Get extends Action
             ->where('bookmarkversion', (int)$this->_version)
             ->delete();
 
+        $conferences = [];
+
         foreach ($stanza->pubsub->items->item as $c) {
             $conference = new Conference;
             $conference->set($c);
-            $conference->save();
+            array_push($conferences, $conference->toArray());
         }
 
+        Conference::saveMany($conferences);
+
         $this->pack($this->_version);
         $this->deliver();
     }
diff --git a/lib/moxl/src/Xec/Action/PubsubSubscription/Get.php b/lib/moxl/src/Xec/Action/PubsubSubscription/Get.php
index 63fe31ffe..d3fb18f33 100644
--- a/lib/moxl/src/Xec/Action/PubsubSubscription/Get.php
+++ b/lib/moxl/src/Xec/Action/PubsubSubscription/Get.php
@@ -2,6 +2,7 @@
 
 namespace Moxl\Xec\Action\PubsubSubscription;
 
+use App\Subscription;
 use Moxl\Xec\Action\Pubsub\Errors;
 use Moxl\Stanza\Pubsub;
 
@@ -22,6 +23,8 @@ class Get extends Errors
                        ->where('public', ($this->_pepnode == 'urn:xmpp:pubsub:subscription'))
                        ->delete();
 
+        $subscriptions = [];
+
         foreach ($stanza->pubsub->items->children() as $i) {
             $subscription = \App\Subscription::firstOrNew([
                 'jid' => $this->_to,
@@ -32,9 +35,14 @@ class Get extends Errors
             if ($this->_pepnode == 'urn:xmpp:pubsub:subscription') {
                 $subscription->public = true;
             }
-            $subscription->save();
+
+            if (!$subscription->exists) {
+                array_push($subscriptions, $subscription->toArray());
+            }
         }
 
+        Subscription::saveMany($subscriptions);
+
         $this->pack($this->_to);
         $this->deliver();
     }