diff --git a/libktcore/torrent/queuemanager.h b/libktcore/torrent/queuemanager.h
--- a/libktcore/torrent/queuemanager.h
+++ b/libktcore/torrent/queuemanager.h
@@ -195,6 +195,16 @@
          */
         void mergeAnnounceList(const bt::SHA1Hash& ih, const bt::TrackerTier* trk) override;
 
+        /**
+         * Requested by each TorrentControl during its update to
+         * get permission on saving Stats file to disk. May be
+         * overriden to balance I/O operations.
+         * @param tc Pointer to TorrentControl instance
+         * @return true if file save is permitted, false otherwise
+         */
+
+        bool permitStatsSync(bt::TorrentControl* tc) override;
+
         /**
          * Set the maximum number of downloads
          * @param m Max downloads
@@ -300,6 +310,7 @@
         bool exiting;
         bool ordering;
         QDateTime network_down_time;
+        bt::TimeStamp last_stats_sync_permitted;
     };
 }
 #endif
diff --git a/libktcore/torrent/queuemanager.cpp b/libktcore/torrent/queuemanager.cpp
--- a/libktcore/torrent/queuemanager.cpp
+++ b/libktcore/torrent/queuemanager.cpp
@@ -58,6 +58,8 @@
         exiting = false;
         ordering = false;
 
+        last_stats_sync_permitted = 0;
+
         QNetworkConfigurationManager* networkConfigurationManager = new QNetworkConfigurationManager(this);
         connect(networkConfigurationManager, &QNetworkConfigurationManager::onlineStateChanged, this, &QueueManager::onOnlineStateChanged);
     }
@@ -545,6 +547,26 @@
         }
     }
 
+    bool QueueManager::permitStatsSync(TorrentControl *tc)
+    {
+        // we want to assure that minimum time interval delay is happen
+        // before next TorrentControl dumps its State to the file
+
+        // if you have more than 500 running torrents it's feasible to
+        // increase the period to avoid too small interval value
+        const TimeStamp max_period = (50 * 60 * 1000) * (downloads.size() / 500 + 1);
+
+        if (tc->getStatsSyncElapsedTime() >= max_period) {
+            const bt::TimeStamp now = Now();
+            const bt::TimeStamp interval = max_period / downloads.size();
+            if (now - last_stats_sync_permitted > interval) {
+                last_stats_sync_permitted = now;
+                return true;
+            }
+        }
+        return false;
+    }
+
     void QueueManager::orderQueue()
     {
         if (ordering || !downloads.count() || exiting)