diff --git a/YACReaderLibrary/db_helper.cpp b/YACReaderLibrary/db_helper.cpp
index 9d53105b..074f2194 100644
--- a/YACReaderLibrary/db_helper.cpp
+++ b/YACReaderLibrary/db_helper.cpp
@@ -773,6 +773,10 @@ void DBHelper::updateFromRemoteClientWithHash(const ComicInfo &comicInfo)
 
         ComicInfo info = loadComicInfo(comicInfo.hash, db);
 
+        if (!info.existOnDb) {
+            continue;
+        }
+
         if (comicInfo.currentPage > 0) {
             info.currentPage = comicInfo.currentPage;
 
@@ -795,6 +799,121 @@ void DBHelper::updateFromRemoteClientWithHash(const ComicInfo &comicInfo)
     }
 }
 
+void DBHelper::updateFromRemoteClient(const QMap<qulonglong, QList<ComicInfo>> &comics)
+{
+    foreach (qulonglong libraryId, comics.keys()) {
+        QString libraryPath = DBHelper::getLibraries().getPath(libraryId);
+        QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath + "/.yacreaderlibrary");
+
+        db.transaction();
+
+        QSqlQuery updateComicInfo(db);
+        updateComicInfo.prepare("UPDATE comic_info SET "
+                                "read = :read, "
+                                "currentPage = :currentPage, "
+                                "hasBeenOpened = :hasBeenOpened, "
+                                "lastTimeOpened = :lastTimeOpened, "
+                                "rating = :rating"
+                                " WHERE id = :id ");
+
+        foreach (ComicInfo comicInfo, comics[libraryId]) {
+            ComicDB comic = DBHelper::loadComic(comicInfo.id, db);
+
+            if (comic.info.hash == comicInfo.hash) {
+                if (comicInfo.currentPage > 0) {
+                    comic.info.currentPage = comicInfo.currentPage;
+
+                    if (comic.info.currentPage == comic.info.numPages)
+                        comic.info.read = true;
+
+                    comic.info.hasBeenOpened = true;
+
+                    if (comic.info.lastTimeOpened.toULongLong() < comicInfo.lastTimeOpened.toULongLong())
+                        comic.info.lastTimeOpened = comicInfo.lastTimeOpened;
+                }
+
+                if (comicInfo.rating > 0)
+                    comic.info.rating = comicInfo.rating;
+
+                updateComicInfo.bindValue(":read", comic.info.read ? 1 : 0);
+                updateComicInfo.bindValue(":currentPage", comic.info.currentPage);
+                updateComicInfo.bindValue(":hasBeenOpened", comic.info.hasBeenOpened ? 1 : 0);
+                updateComicInfo.bindValue(":lastTimeOpened", QDateTime::currentMSecsSinceEpoch() / 1000);
+                updateComicInfo.bindValue(":id", comic.info.id);
+                updateComicInfo.bindValue(":rating", comic.info.rating);
+                updateComicInfo.exec();
+
+                updateComicInfo.clear();
+            }
+        }
+
+        db.commit();
+
+        db.close();
+        QSqlDatabase::removeDatabase(db.connectionName());
+    }
+}
+
+void DBHelper::updateFromRemoteClientWithHash(const QList<ComicInfo> &comics)
+{
+    YACReaderLibraries libraries = DBHelper::getLibraries();
+
+    QStringList names = libraries.getNames();
+
+    foreach (QString name, names) {
+        QString libraryPath = DBHelper::getLibraries().getPath(libraries.getId(name));
+
+        QSqlDatabase db = DataBaseManagement::loadDatabase(libraryPath + "/.yacreaderlibrary");
+
+        db.transaction();
+
+        QSqlQuery updateComicInfo(db);
+        updateComicInfo.prepare("UPDATE comic_info SET "
+                                "read = :read, "
+                                "currentPage = :currentPage, "
+                                "hasBeenOpened = :hasBeenOpened, "
+                                "lastTimeOpened = :lastTimeOpened, "
+                                "rating = :rating"
+                                " WHERE id = :id ");
+
+        foreach (ComicInfo comicInfo, comics) {
+            ComicInfo info = loadComicInfo(comicInfo.hash, db);
+
+            if (!info.existOnDb) {
+                continue;
+            }
+
+            if (comicInfo.currentPage > 0) {
+                info.currentPage = comicInfo.currentPage;
+
+                if (info.currentPage == info.numPages)
+                    info.read = true;
+
+                info.hasBeenOpened = true;
+
+                if (info.lastTimeOpened.toULongLong() < comicInfo.lastTimeOpened.toULongLong())
+                    info.lastTimeOpened = comicInfo.lastTimeOpened;
+            }
+
+            if (comicInfo.rating > 0) {
+                info.rating = comicInfo.rating;
+            }
+
+            updateComicInfo.bindValue(":read", info.read ? 1 : 0);
+            updateComicInfo.bindValue(":currentPage", info.currentPage);
+            updateComicInfo.bindValue(":hasBeenOpened", info.hasBeenOpened ? 1 : 0);
+            updateComicInfo.bindValue(":lastTimeOpened", QDateTime::currentMSecsSinceEpoch() / 1000);
+            updateComicInfo.bindValue(":id", info.id);
+            updateComicInfo.bindValue(":rating", info.rating);
+            updateComicInfo.exec();
+            ;
+        }
+
+        db.close();
+        QSqlDatabase::removeDatabase(db.connectionName());
+    }
+}
+
 void DBHelper::renameLabel(qulonglong id, const QString &name, QSqlDatabase &db)
 {
     QSqlQuery renameLabelQuery(db);
diff --git a/YACReaderLibrary/db_helper.h b/YACReaderLibrary/db_helper.h
index 9b4150ee..fb61b854 100644
--- a/YACReaderLibrary/db_helper.h
+++ b/YACReaderLibrary/db_helper.h
@@ -69,9 +69,11 @@ public:
     static void updateChildrenInfo(QSqlDatabase &db);
     static void updateProgress(qulonglong libraryId, const ComicInfo &comicInfo);
     static void setComicAsReading(qulonglong libraryId, const ComicInfo &comicInfo);
-    static void updateReadingRemoteProgress(const ComicInfo &comicInfo, QSqlDatabase &db);
     static void updateFromRemoteClient(qulonglong libraryId, const ComicInfo &comicInfo);
     static void updateFromRemoteClientWithHash(const ComicInfo &comicInfo);
+    static void updateReadingRemoteProgress(const ComicInfo &comicInfo, QSqlDatabase &db);
+    static void updateFromRemoteClient(const QMap<qulonglong, QList<ComicInfo>> &comics);
+    static void updateFromRemoteClientWithHash(const QList<ComicInfo> &comics);
     static void renameLabel(qulonglong id, const QString &name, QSqlDatabase &db);
     static void renameList(qulonglong id, const QString &name, QSqlDatabase &db);
     static void reasignOrderToSublists(QList<qulonglong> ids, QSqlDatabase &db);
diff --git a/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp b/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp
index 99bfc972..1b8ced6e 100644
--- a/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp
+++ b/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp
@@ -27,6 +27,8 @@ void SyncControllerV2::service(HttpRequest &request, HttpResponse &response)
         int currentRating;
         unsigned long long lastTimeOpened;
         QString hash;
+        QMap<qulonglong, QList<ComicInfo>> comics;
+        QList<ComicInfo> comicsWithNoLibrary;
         foreach (QString comicInfo, data) {
             QList<QString> comicInfoProgress = comicInfo.split("\t");
 
@@ -47,8 +49,10 @@ void SyncControllerV2::service(HttpRequest &request, HttpResponse &response)
 
                     lastTimeOpened = comicInfoProgress.at(5).toULong();
                     info.lastTimeOpened = lastTimeOpened;
-
-                    DBHelper::updateFromRemoteClient(libraryId, info);
+                    if (!comics.contains(libraryId)) {
+                        comics[libraryId] = QList<ComicInfo>();
+                    }
+                    comics[libraryId].push_back(info);
                 } else {
                     hash = comicInfoProgress.at(2);
                     currentPage = comicInfoProgress.at(3).toInt();
@@ -63,10 +67,13 @@ void SyncControllerV2::service(HttpRequest &request, HttpResponse &response)
                     lastTimeOpened = comicInfoProgress.at(5).toULong();
                     info.lastTimeOpened = lastTimeOpened;
 
-                    DBHelper::updateFromRemoteClientWithHash(info);
+                    comicsWithNoLibrary.push_back(info);
                 }
             }
         }
+
+        DBHelper::updateFromRemoteClient(comics);
+        DBHelper::updateFromRemoteClientWithHash(comicsWithNoLibrary);
     } else {
         response.setStatus(412, "No comic info received");
         response.write("", true);