diff --git a/shared/lora_device.py b/shared/lora_device.py
index c7eeb0d..1ed0f29 100644
--- a/shared/lora_device.py
+++ b/shared/lora_device.py
@@ -33,10 +33,9 @@ class BaseLoraDevice:
         """Sends an immediate acknowledgement packet back to the sender."""
         print(f"[ReliableLoRa] -> Triggering ACK send for msg_id: {ack_id}")
         if IS_MICROPYTHON:
-            time.sleep_ms(100)
+            time.sleep_ms(50)
         else:
-            # Give LA66 chip time to finish logging RSSI and reset RF frontend
-            time.sleep(0.25)
+            time.sleep(0.05)  # Reduced delay to fit ESP32 RX window
 
         ack_payload = {"_type": "_ack", "_ack_id": ack_id}
         self.send(ack_payload)