diff --git a/bongo_cat_presser.ahk b/bongo_cat_presser.ahk
index e6cbdf3..a725930 100644
--- a/bongo_cat_presser.ahk
+++ b/bongo_cat_presser.ahk
@@ -11,17 +11,51 @@
 
 #SingleInstance, Force
 #Persistent ; Keeps the script running to allow for the high-frequency timer.
+#InstallKeybdHook    ; Hook-based detection for instant modifier response.
+#InstallMouseHook    ; Hook-based detection for instant mouse button response.
 SetBatchLines, -1
 
+; Force 1ms timer resolution (default is ~15.6ms, making SetTimer and Sleep inaccurate).
+DllCall("winmm\timeBeginPeriod", "UInt", 1)
+OnExit("CleanupTimerResolution")
+
 ; --- CONFIGURATION ---
 KEYS_TO_PRESS := ["F21", "F22", "F23", "F24"] ; A pool of safe keys to press at random.
 PRESS_INTERVAL_MS := 10        ; How often to press a key (in milliseconds).
 CHECK_INTERVAL_MS := 5         ; How often to check for user input (for pausing).
 
-; --- MAIN SCRIPT LOGIC ---
+; --- STATE ---
 global Toggle := false
+global ModifierHeld := false
 global lastPressTime := 0
 
+; --- MODIFIER HOOKS ---
+; ~ lets the key pass through normally, * fires regardless of other modifiers.
+; These fire instantly via the keyboard hook — no polling delay.
+~*LShift::
+~*RShift::
+~*LCtrl::
+~*RCtrl::
+~*LAlt::
+~*RAlt::
+~*LButton::
+~*RButton::
+    ModifierHeld := true
+return
+
+~*LShift Up::
+~*RShift Up::
+~*LCtrl Up::
+~*RCtrl Up::
+~*LAlt Up::
+~*RAlt Up::
+~*LButton Up::
+~*RButton Up::
+    ; Only clear if no modifiers are still physically held.
+    if !GetKeyState("Shift", "P") and !GetKeyState("Control", "P") and !GetKeyState("Alt", "P") and !GetKeyState("LButton", "P") and !GetKeyState("RButton", "P")
+        ModifierHeld := false
+return
+
 F8::
     Toggle := !Toggle
     if (Toggle) {
@@ -33,9 +67,8 @@ F8::
 return
 
 MainLoop:
-    ; THE FIX: This loop runs very fast (every 10ms) to check for user input.
-    if GetKeyState("Shift", "P") or GetKeyState("Control", "P") or GetKeyState("Alt", "P") or GetKeyState("LButton", "P") or GetKeyState("RButton", "P")
-        return ; Instantly skip if a modifier is held.
+    if (ModifierHeld)
+        return
 
     ; Now, check if enough time has passed to send the NEXT keypress.
     if (A_TickCount - lastPressTime > PRESS_INTERVAL_MS)
@@ -53,6 +86,10 @@ MainLoop:
     }
 return
 
+CleanupTimerResolution() {
+    DllCall("winmm\timeEndPeriod", "UInt", 1)
+}
+
 Esc::
     ExitApp
 return
\ No newline at end of file