diff --git a/backend/backend/pag.py b/backend/backend/pag.py
index 53df3c9..9517df6 100644
--- a/backend/backend/pag.py
+++ b/backend/backend/pag.py
@@ -1,32 +1,36 @@
 import pyautogui
-from threading import Thread
+from threading import Thread, Event
 from time import sleep
 
-from .input import KEYMAP, Input, Button, Event
+from .input import KEYMAP, Input, Button, Event as InputEvent
+
+EMPTY_INPUT = {button: False for button in Button}
 
 
 class InputHandler:
     def __init__(self):
-        self.current: Input = {button: False for button in Button}
-        self.previous: Input = {button: False for button in Button}
-
-        print(f"sanity check: {self.previous=}, {self.current=}")
+        self.current: Input = EMPTY_INPUT
+        self.previous: Input = EMPTY_INPUT
+        self.dirty = Event()
 
     def set(self, input: Input):
         # MUST NOT BLOCK
         # to be called from asyncio context
         self.current = input
+        self.dirty.set()
 
-    def get(self) -> list[Event]:
+    def get(self) -> list[InputEvent]:
+        self.dirty.wait()
         events = []
         for button in Button:
             match (self.previous[button], self.current[button]):
                 case (True, False):
-                    events.append(Event(button, "up"))
+                    events.append(InputEvent(button, "up"))
                 case (False, True):
-                    events.append(Event(button, "down"))
+                    events.append(InputEvent(button, "down"))
 
         self.previous = self.current
+        self.dirty.clear()
         return events
 
 
@@ -40,6 +44,7 @@ class Runner(Thread):
 
     def stop(self):
         self.running = False
+        input.set(EMPTY_INPUT)
 
     def run(self):
         while self.running:
@@ -50,4 +55,3 @@ class Runner(Thread):
                     pyautogui.keyDown(KEYMAP[event.button])
                 else:
                     pyautogui.keyUp(KEYMAP[event.button])
-            sleep(0.05)