diff --git a/src/common/threads.cpp b/src/common/threads.cpp
index c83bf9488..c0b4bbe82 100644
--- a/src/common/threads.cpp
+++ b/src/common/threads.cpp
@@ -28,7 +28,8 @@
 #ifdef KYTY_WIN_CS
 #include <windows.h> // IWYU pragma: keep
 // IWYU pragma: no_include <winbase.h>
-constexpr DWORD KYTY_CS_SPIN_COUNT = 4000;
+constexpr DWORD    KYTY_CS_SPIN_COUNT          = 4000;
+constexpr uint64_t KYTY_SLEEP_SPIN_LIMIT_100NS = 500; // 50 us
 
 #ifndef CREATE_WAITABLE_TIMER_HIGH_RESOLUTION
 #define CREATE_WAITABLE_TIMER_HIGH_RESOLUTION 0x00000002
@@ -39,7 +40,10 @@ static void SleepHighResolution100ns(uint64_t units_100ns) {
 		return;
 	}
 
-	if (units_100ns <= 10000) {
+	// Keep spinning only where a kernel transition is
+	// likely to cost more than the requested delay; ordinary millisecond sleeps use the
+	// per-thread high-resolution waitable timer below.
+	if (units_100ns <= KYTY_SLEEP_SPIN_LIMIT_100NS) {
 		LARGE_INTEGER frequency {};
 		LARGE_INTEGER start {};
 		if (QueryPerformanceFrequency(&frequency) != 0 && QueryPerformanceCounter(&start) != 0 &&
diff --git a/src/graphics/presentation/videoOut.cpp b/src/graphics/presentation/videoOut.cpp
index eaa0fae24..cf0d4f280 100644
--- a/src/graphics/presentation/videoOut.cpp
+++ b/src/graphics/presentation/videoOut.cpp
@@ -788,14 +788,10 @@ void VideoOutDriver::Impl::PresentThread(std::stop_token token) {
 	while (!token.stop_requested()) {
 		const auto sleep_begin = Common::Timer::QueryPerformanceCounter();
 		if (total_wait > 0) {
-			const auto sleep_end = sleep_begin + static_cast<uint64_t>(total_wait);
-			auto       now       = sleep_begin;
-			while (!token.stop_requested() && now < sleep_end) {
-				const auto remaining_us = (sleep_end - now) * 1000000u / frequency;
-				Common::Thread::SleepMicro(
-				    static_cast<uint32_t>(std::clamp<uint64_t>(remaining_us, 1, 1000)));
-				now = Common::Timer::QueryPerformanceCounter();
-			}
+			const auto remaining_us =
+			    (static_cast<uint64_t>(total_wait) * 1000000u + frequency - 1) / frequency;
+			Common::Thread::SleepMicro(static_cast<uint32_t>(
+			    std::clamp<uint64_t>(remaining_us, 1, std::numeric_limits<uint32_t>::max())));
 		}
 		if (token.stop_requested()) {
 			break;
diff --git a/src/graphics/presentation/window/window.cpp b/src/graphics/presentation/window/window.cpp
index 5fc94b8ae..fcffa0dc8 100644
--- a/src/graphics/presentation/window/window.cpp
+++ b/src/graphics/presentation/window/window.cpp
@@ -752,26 +752,18 @@ void WindowContext::Run() {
 #if defined(__APPLE__)
 		DrainMainThreadTasks();
 #endif
-		if (SDL_PollEvent(&loop.event) != 0) {
-			ProcessEvent(timer.GetTimeS());
-			continue;
-		}
-
 		if (loop.paused.load(std::memory_order_acquire)) {
 			if (!timer.IsPaused()) {
 				timer.Pause();
 			}
-			if (SDL_WaitEvent(&loop.event) == 0) {
-				EXIT("%s\n", SDL_GetError());
-			}
-			ProcessEvent(timer.GetTimeS());
-			continue;
-		}
-
-		if (timer.IsPaused()) {
+		} else if (timer.IsPaused()) {
 			timer.Resume();
 		}
-		Common::Thread::SleepMicro(1000);
+
+		if (SDL_WaitEvent(&loop.event) == 0) {
+			EXIT("%s\n", SDL_GetError());
+		}
+		ProcessEvent(timer.GetTimeS());
 	}
 }