[wifi] Wake main loop when requesting high performance mode (#16598)

esphome/components/wifi/wifi_component.cpp

@@ -2193,7 +2193,15 @@ bool WiFiComponent::request_high_performance() {
   }
 
   // Give the semaphore (non-blocking). This increments the count.
-  return xSemaphoreGive(this->high_performance_semaphore_) == pdTRUE;
+  bool success = xSemaphoreGive(this->high_performance_semaphore_) == pdTRUE;
+
+  // Wake the main loop so the switch to high-performance mode is applied on the
+  // next tick instead of waiting up to loop_interval.
+  if (success) {
+    App.wake_loop_threadsafe();
+  }
+
+  return success;
 }
 
 bool WiFiComponent::release_high_performance() {