diff --git a/src/Worker/WorkerManager.py b/src/Worker/WorkerManager.py
index 5bdcd83d..695d80e5 100644
--- a/src/Worker/WorkerManager.py
+++ b/src/Worker/WorkerManager.py
@@ -11,6 +11,7 @@ from util import helper
 from Plugin import PluginManager
 import util
 
+
 @PluginManager.acceptPlugins
 class WorkerManager(object):
 
@@ -22,6 +23,7 @@ class WorkerManager(object):
         # "time_started": None, "time_added": time.time(), "peers": peers, "priority": 0, "failed": peer_ids}
         self.started_task_num = 0  # Last added task num
         self.running = True
+        self.time_task_added = 0
         self.log = logging.getLogger("WorkerManager:%s" % self.site.address_short)
         self.process_taskchecker = gevent.spawn(self.checkTasks)
 
@@ -215,8 +217,20 @@ class WorkerManager(object):
     # Start find peers for optional files
     @util.Noparallel(blocking=False, ignore_args=True)
     def startFindOptional(self, reset_task=False, find_more=False, high_priority=False):
+        # Wait for more file requests
+        if len(self.tasks) < 20 or high_priority:
+            time.sleep(0.01)
+        if len(self.tasks) > 90:
+            time.sleep(5)
+        else:
+            time.sleep(0.5)
+
         optional_tasks = [task for task in self.tasks if task["optional_hash_id"]]
+        if not optional_tasks:
+            return False
         optional_hash_ids = set([task["optional_hash_id"] for task in optional_tasks])
+        time_tasks = self.time_task_added
+
         self.log.debug(
             "Finding peers for optional files: %s (reset_task: %s, find_more: %s)" %
             (optional_hash_ids, reset_task, find_more)
@@ -240,6 +254,10 @@ class WorkerManager(object):
                     threads.append(gevent.spawn(peer.updateHashfield))
             gevent.joinall(threads, timeout=5)
 
+            if time_tasks != self.time_task_added:  # New task added since start
+                optional_tasks = [task for task in self.tasks if task["optional_hash_id"]]
+                optional_hash_ids = set([task["optional_hash_id"] for task in optional_tasks])
+
             found = self.findOptionalTasks(optional_tasks)
             self.log.debug("Found optional files after query hashtable connected peers: %s/%s" % (
                 len(found), len(optional_hash_ids)
@@ -249,17 +267,18 @@ class WorkerManager(object):
                 found_peers = set([peer for hash_id_peers in found.values() for peer in hash_id_peers])
                 self.startWorkers(found_peers)
 
-        if len(found) < len(optional_hash_ids) or find_more:
+        if len(found) < len(optional_hash_ids) or find_more or (high_priority and any(len(peers) < 10 for peers in found.itervalues())):
             self.log.debug("No connected hashtable result for optional files: %s" % (optional_hash_ids - set(found)))
 
             # Try to query connected peers
             threads = []
-            peers = self.site.getConnectedPeers()
+            peers = [peer for peer in self.site.getConnectedPeers() if peer not in self.asked_peers]
             if not peers:
                 peers = self.site.getConnectablePeers()
 
             for peer in peers:
                 threads.append(gevent.spawn(peer.findHashIds, list(optional_hash_ids)))
+                self.asked_peers.append(peer)
 
             for i in range(5):
                 time.sleep(1)
@@ -269,8 +288,8 @@ class WorkerManager(object):
 
                 found_ips = helper.mergeDicts(thread_values)
                 found = self.addOptionalPeers(found_ips)
-                self.log.debug("Found optional files after findhash connected peers: %s/%s" % (
-                    len(found), len(optional_hash_ids)
+                self.log.debug("Found optional files after findhash connected peers: %s/%s (asked: %s)" % (
+                    len(found), len(optional_hash_ids), len(threads)
                 ))
 
                 if found:
@@ -284,11 +303,17 @@ class WorkerManager(object):
         if len(found) < len(optional_hash_ids):
             self.log.debug("No findHash result, try random peers: %s" % (optional_hash_ids - set(found)))
             # Try to query random peers
-            threads = []
-            peers = self.site.getConnectablePeers()
 
-            for peer in peers[0:5]:
+            if time_tasks != self.time_task_added:  # New task added since start
+                optional_tasks = [task for task in self.tasks if task["optional_hash_id"]]
+                optional_hash_ids = set([task["optional_hash_id"] for task in optional_tasks])
+
+            threads = []
+            peers = self.site.getConnectablePeers(ignore=self.asked_peers)
+
+            for peer in peers:
                 threads.append(gevent.spawn(peer.findHashIds, list(optional_hash_ids)))
+                self.asked_peers.append(peer)
 
             gevent.joinall(threads, timeout=15)
 
@@ -325,8 +350,13 @@ class WorkerManager(object):
         if worker.key in self.workers:
             del(self.workers[worker.key])
             self.log.debug("Removed worker, workers: %s/%s" % (len(self.workers), self.getMaxWorkers()))
-        if len(self.workers) <= self.getMaxWorkers()/2 and any(task["optional_hash_id"] for task in self.tasks):
-            self.startFindOptional(find_more=True)
+        if len(self.workers) <= self.getMaxWorkers() / 3 and len(self.asked_peers) < 10:
+            important_task = (task for task in self.tasks if task["priority"] > 0)
+            if next(important_task, None) or len(self.asked_peers) == 0:
+                self.startFindOptional(find_more=True)
+            else:
+                self.startFindOptional()
+
 
     # Tasks sorted by this
     def getPriorityBoost(self, inner_path):
@@ -394,6 +424,7 @@ class WorkerManager(object):
                 "New task: %s, peer lock: %s, priority: %s, optional_hash_id: %s, tasks started: %s" %
                 (task["inner_path"], peers, priority, optional_hash_id, self.started_task_num)
             )
+            self.time_task_added = time.time()
 
             if optional_hash_id:
                 self.startFindOptional()