diff --git a/src/InterruptHandler.cpp b/src/InterruptHandler.cpp
index cab37be..b9722b8 100644
--- a/src/InterruptHandler.cpp
+++ b/src/InterruptHandler.cpp
@@ -30,10 +30,9 @@ void InterruptHandler_Init(void)
     beepSemaphore = xSemaphoreCreateBinary();
     rfEventQueue  = xQueueCreate(RF_QUEUE_SIZE, sizeof(RfEvent_t));
 
-    /* beepTask: replaces beep logic that was in timerIsr — high priority so it responds within one tick */
-    xTaskCreatePinnedToCore(beepTask,     "beepTask", 2048, NULL, 5, NULL, 1);
-    /* rfDecodeTask: replaces receiver ISR calls that were in pinLevelChangeIsr */
-    xTaskCreatePinnedToCore(rfDecodeTask, "rfTask",   3072, NULL, 4, NULL, 1);
+    /* beepTask and rfDecodeTask do little work per activation — pin to Core 0 to keep Core 1 free for the main loop */
+    xTaskCreatePinnedToCore(beepTask,     "beepTask", 2048, NULL, 5, NULL, 0);
+    xTaskCreatePinnedToCore(rfDecodeTask, "rfTask",   3072, NULL, 4, NULL, 0);
 
     attachInterrupt(digitalPinToInterrupt(DIN_FUNK), pinLevelChangeIsr, CHANGE);