diff --git a/Utilities/sync.h b/Utilities/sync.h
index 7f74bd9abd..5d7e3ae461 100644
--- a/Utilities/sync.h
+++ b/Utilities/sync.h
@@ -24,6 +24,7 @@
 #include <unordered_map>
 
 #ifdef _WIN32
+DYNAMIC_IMPORT("ntdll.dll", NtQueryTimerResolution, NTSTATUS(PULONG MinimumResolution, PULONG MaximumResolution, PULONG CurrentResolution));
 DYNAMIC_IMPORT("ntdll.dll", NtSetTimerResolution, NTSTATUS(ULONG DesiredResolution, BOOLEAN SetResolution, PULONG CurrentResolution));
 DYNAMIC_IMPORT("ntdll.dll", NtWaitForKeyedEvent, NTSTATUS(HANDLE Handle, PVOID Key, BOOLEAN Alertable, PLARGE_INTEGER Timeout));
 DYNAMIC_IMPORT("ntdll.dll", NtReleaseKeyedEvent, NTSTATUS(HANDLE Handle, PVOID Key, BOOLEAN Alertable, PLARGE_INTEGER Timeout));
diff --git a/rpcs3/main.cpp b/rpcs3/main.cpp
index 3e326306e2..b749408c65 100644
--- a/rpcs3/main.cpp
+++ b/rpcs3/main.cpp
@@ -79,13 +79,6 @@ int main(int argc, char** argv)
 	// I think there was an issue with gsframe if I recall correctly, so look out for that
 	//QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
 	SetProcessDPIAware();
-
-	timeBeginPeriod(1);
-
-	atexit([]
-	{
-		timeEndPeriod(1);
-	});
 #else
 	qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "1");
 #endif
diff --git a/rpcs3/rpcs3_app.cpp b/rpcs3/rpcs3_app.cpp
index 4441c89727..87624aa7cd 100644
--- a/rpcs3/rpcs3_app.cpp
+++ b/rpcs3/rpcs3_app.cpp
@@ -57,6 +57,12 @@
 #include "Emu/Audio/Pulse/PulseThread.h"
 #endif
 
+#ifdef _WIN32
+#include "Utilities/dynamic_library.h"
+DYNAMIC_IMPORT("ntdll.dll", NtQueryTimerResolution, NTSTATUS(PULONG MinimumResolution, PULONG MaximumResolution, PULONG CurrentResolution));
+DYNAMIC_IMPORT("ntdll.dll", NtSetTimerResolution, NTSTATUS(ULONG DesiredResolution, BOOLEAN SetResolution, PULONG CurrentResolution));
+#endif
+
 // For now, a trivial constructor/destructor.  May add command line usage later.
 rpcs3_app::rpcs3_app(int& argc, char** argv) : QApplication(argc, argv)
 {
@@ -101,6 +107,17 @@ void rpcs3_app::Init()
 		Discord_Initialize("424004941485572097", &handlers, 1, NULL);
 	}
 #endif
+
+#ifdef _WIN32
+	// Set 0.5 msec timer resolution for best performance
+	// - As QT5 timers (QTimer) sets the timer resolution to 1 msec, override it here.
+	// - Don't bother "unsetting" the timer resolution after the emulator stops as QT5 will still require the timer resolution to be set to 1 msec.
+	ULONG min_res, max_res, orig_res, new_res;
+	if (NtQueryTimerResolution(&min_res, &max_res, &orig_res) == 0)
+	{
+		NtSetTimerResolution(max_res, TRUE, &new_res);
+	}
+#endif
 }
 
 /** RPCS3 emulator has functions it desires to call from the GUI at times. Initialize them in here.