diff --git a/src/mirage.cpp b/src/mirage.cpp
index 44f9ee3..fb8ee4f 100644
--- a/src/mirage.cpp
+++ b/src/mirage.cpp
@@ -53,8 +53,8 @@ void mirage_app::run() {
 		widget_manager::get().update();
 
 		last_time = get_current_time();
-		// std::this_thread::sleep_for(std::chrono::milliseconds(1));
-		std::this_thread::yield();
+		std::this_thread::sleep_for(std::chrono::milliseconds(1));
+		// std::this_thread::yield();
 	}
 	running = false;
 	render_context->cleanup();
diff --git a/src/widget/mwidget.h b/src/widget/mwidget.h
index 3ecca57..dc23e61 100644
--- a/src/widget/mwidget.h
+++ b/src/widget/mwidget.h
@@ -57,6 +57,9 @@ public:
 	void set_parent(const widget_key& in_parent);
 
 	virtual void invalidate(invalidate_reason in_reason);
+	auto has_invalidate_reason(invalidate_reason in_reason) const { return get_component_ref<widget_invalidate>().has(in_reason); }
+	void clear_invalidate_reason(invalidate_reason in_reason) { get_component_ref<widget_invalidate>().unset(in_reason); }
+	auto get_invalidation_reason() const { return get_component_ref<widget_invalidate>().invalidate; }
 
 
 	auto is_enabled() const { return get_component_ref<widget_visibility>().is_enabled(); }
diff --git a/src/widget_tree/widget_system.cpp b/src/widget_tree/widget_system.cpp
index 1dfa225..a148e62 100644
--- a/src/widget_tree/widget_system.cpp
+++ b/src/widget_tree/widget_system.cpp
@@ -224,6 +224,8 @@ void widget_render_system::onUpdate(mustache::World& in_world) {
 		return;
 	if (!window->is_visible())
 		return;
+	if (!window->has_invalidate_reason(invalidate_reason::paint))
+		return;
 
 	auto& window_state = window->get_state();
 
@@ -248,6 +250,7 @@ void widget_render_system::onUpdate(mustache::World& in_world) {
 	sg_commit();
 
 	window_state.present();
+	window->clear_invalidate_reason(invalidate_reason::paint);
 }
 
 void widget_render_system::paint(const widget_key& in_key) {