diff --git a/electrum/plugin.py b/electrum/plugin.py
index 8879e15a7..a2f7bff8f 100644
--- a/electrum/plugin.py
+++ b/electrum/plugin.py
@@ -209,7 +209,7 @@ class Plugins(DaemonThread):
 
     def run(self):
         while self.is_running():
-            time.sleep(0.1)
+            self.wake_up_event.wait(0.1)  # time.sleep(0.1) OR event
             self.run_jobs()
         self.on_stop()
 
diff --git a/electrum/util.py b/electrum/util.py
index cbf8a6a30..678aa9d9e 100644
--- a/electrum/util.py
+++ b/electrum/util.py
@@ -372,6 +372,7 @@ class DaemonThread(threading.Thread, Logger):
         self.jobs = []
         self.stopped_event = threading.Event()        # set when fully stopped
         self.stopped_event_async = asyncio.Event()    # set when fully stopped
+        self.wake_up_event = threading.Event()  # for perf optimisation of polling in run()
 
     def add_jobs(self, jobs):
         with self.job_lock:
@@ -405,6 +406,8 @@ class DaemonThread(threading.Thread, Logger):
     def stop(self):
         with self.running_lock:
             self.running = False
+            self.wake_up_event.set()
+            self.wake_up_event.clear()
 
     def on_stop(self):
         if 'ANDROID_DATA' in os.environ: