diff --git a/src/xenia/kernel/xam/xam_notify.cc b/src/xenia/kernel/xam/xam_notify.cc
index 33a652e66..fa31ca930 100644
--- a/src/xenia/kernel/xam/xam_notify.cc
+++ b/src/xenia/kernel/xam/xam_notify.cc
@@ -68,7 +68,8 @@ dword_result_t XNotifyGetNext(dword_t handle, dword_t match_id,
 
   return dequeued ? 1 : 0;
 }
-DECLARE_XAM_EXPORT(XNotifyGetNext, ExportTag::kImplemented);
+DECLARE_XAM_EXPORT(XNotifyGetNext,
+                   ExportTag::kImplemented | ExportTag::kHighFrequency);
 
 dword_result_t XNotifyDelayUI(dword_t delay_ms) {
   // Ignored.
diff --git a/src/xenia/kernel/xboxkrnl/xboxkrnl_audio.cc b/src/xenia/kernel/xboxkrnl/xboxkrnl_audio.cc
index fb3ad1d6a..3ed76b2c6 100644
--- a/src/xenia/kernel/xboxkrnl/xboxkrnl_audio.cc
+++ b/src/xenia/kernel/xboxkrnl/xboxkrnl_audio.cc
@@ -36,7 +36,8 @@ dword_result_t XAudioGetVoiceCategoryVolumeChangeMask(lpunknown_t driver_ptr,
   return X_ERROR_SUCCESS;
 }
 DECLARE_XBOXKRNL_EXPORT(XAudioGetVoiceCategoryVolumeChangeMask,
-                        ExportTag::kStub | ExportTag::kAudio);
+                        ExportTag::kStub | ExportTag::kAudio |
+                            ExportTag::kHighFrequency);
 
 dword_result_t XAudioGetVoiceCategoryVolume(dword_t unk, lpfloat_t out_ptr) {
   // Expects a floating point single. Volume %?
@@ -92,7 +93,8 @@ dword_result_t XAudioSubmitRenderDriverFrame(lpunknown_t driver_ptr,
   return X_ERROR_SUCCESS;
 }
 DECLARE_XBOXKRNL_EXPORT(XAudioSubmitRenderDriverFrame,
-                        ExportTag::kImplemented | ExportTag::kAudio);
+                        ExportTag::kImplemented | ExportTag::kAudio |
+                            ExportTag::kHighFrequency);
 
 void RegisterAudioExports(xe::cpu::ExportResolver* export_resolver,
                           KernelState* kernel_state) {
diff --git a/src/xenia/kernel/xboxkrnl/xboxkrnl_threading.cc b/src/xenia/kernel/xboxkrnl/xboxkrnl_threading.cc
index 61efd09c6..131601eac 100644
--- a/src/xenia/kernel/xboxkrnl/xboxkrnl_threading.cc
+++ b/src/xenia/kernel/xboxkrnl/xboxkrnl_threading.cc
@@ -447,8 +447,9 @@ dword_result_t KeSetEvent(pointer_t<X_KEVENT> event_ptr, dword_t increment,
 
   return ev->Set(increment, !!wait);
 }
-DECLARE_XBOXKRNL_EXPORT(KeSetEvent,
-                        ExportTag::kImplemented | ExportTag::kThreading);
+DECLARE_XBOXKRNL_EXPORT(KeSetEvent, ExportTag::kImplemented |
+                                        ExportTag::kThreading |
+                                        ExportTag::kHighFrequency);
 
 dword_result_t KePulseEvent(pointer_t<X_KEVENT> event_ptr, dword_t increment,
                             dword_t wait) {
@@ -460,7 +461,9 @@ dword_result_t KePulseEvent(pointer_t<X_KEVENT> event_ptr, dword_t increment,
 
   return ev->Pulse(increment, !!wait);
 }
-DECLARE_XBOXKRNL_EXPORT(KePulseEvent, ExportTag::kImplemented);
+DECLARE_XBOXKRNL_EXPORT(KePulseEvent, ExportTag::kImplemented |
+                                          ExportTag::kThreading |
+                                          ExportTag::kHighFrequency);
 
 dword_result_t KeResetEvent(pointer_t<X_KEVENT> event_ptr) {
   auto ev = XObject::GetNativeObject<XEvent>(kernel_state(), event_ptr);
@@ -523,8 +526,9 @@ dword_result_t NtSetEvent(dword_t handle, lpdword_t previous_state_ptr) {
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(NtSetEvent,
-                        ExportTag::kImplemented | ExportTag::kThreading);
+DECLARE_XBOXKRNL_EXPORT(NtSetEvent, ExportTag::kImplemented |
+                                        ExportTag::kThreading |
+                                        ExportTag::kHighFrequency);
 
 dword_result_t NtPulseEvent(dword_t handle, lpdword_t previous_state_ptr) {
   X_STATUS result = X_STATUS_SUCCESS;
@@ -541,8 +545,9 @@ dword_result_t NtPulseEvent(dword_t handle, lpdword_t previous_state_ptr) {
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(NtPulseEvent,
-                        ExportTag::kImplemented | ExportTag::kThreading);
+DECLARE_XBOXKRNL_EXPORT(NtPulseEvent, ExportTag::kImplemented |
+                                          ExportTag::kThreading |
+                                          ExportTag::kHighFrequency);
 
 dword_result_t NtClearEvent(dword_t handle) {
   X_STATUS result = X_STATUS_SUCCESS;
@@ -556,8 +561,9 @@ dword_result_t NtClearEvent(dword_t handle) {
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(NtClearEvent,
-                        ExportTag::kImplemented | ExportTag::kThreading);
+DECLARE_XBOXKRNL_EXPORT(NtClearEvent, ExportTag::kImplemented |
+                                          ExportTag::kThreading |
+                                          ExportTag::kHighFrequency);
 
 // https://msdn.microsoft.com/en-us/library/windows/hardware/ff552150(v=vs.85).aspx
 void KeInitializeSemaphore(pointer_t<X_KSEMAPHORE> semaphore_ptr, dword_t count,
@@ -838,9 +844,9 @@ dword_result_t KeWaitForSingleObject(lpvoid_t object_ptr, dword_t wait_reason,
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(KeWaitForSingleObject, ExportTag::kImplemented |
-                                                   ExportTag::kThreading |
-                                                   ExportTag::kBlocking);
+DECLARE_XBOXKRNL_EXPORT(KeWaitForSingleObject,
+                        ExportTag::kImplemented | ExportTag::kThreading |
+                            ExportTag::kBlocking | ExportTag::kHighFrequency);
 
 dword_result_t NtWaitForSingleObjectEx(dword_t object_handle, dword_t wait_mode,
                                        dword_t alertable,
@@ -859,9 +865,9 @@ dword_result_t NtWaitForSingleObjectEx(dword_t object_handle, dword_t wait_mode,
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(NtWaitForSingleObjectEx, ExportTag::kImplemented |
-                                                     ExportTag::kThreading |
-                                                     ExportTag::kBlocking);
+DECLARE_XBOXKRNL_EXPORT(NtWaitForSingleObjectEx,
+                        ExportTag::kImplemented | ExportTag::kThreading |
+                            ExportTag::kBlocking | ExportTag::kHighFrequency);
 
 dword_result_t KeWaitForMultipleObjects(dword_t count, lpdword_t objects_ptr,
                                         dword_t wait_type, dword_t wait_reason,
@@ -893,9 +899,9 @@ dword_result_t KeWaitForMultipleObjects(dword_t count, lpdword_t objects_ptr,
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(KeWaitForMultipleObjects, ExportTag::kImplemented |
-                                                      ExportTag::kThreading |
-                                                      ExportTag::kBlocking);
+DECLARE_XBOXKRNL_EXPORT(KeWaitForMultipleObjects,
+                        ExportTag::kImplemented | ExportTag::kThreading |
+                            ExportTag::kBlocking | ExportTag::kHighFrequency);
 
 dword_result_t NtWaitForMultipleObjectsEx(dword_t count, lpdword_t handles,
                                           dword_t wait_type, dword_t wait_mode,
@@ -922,9 +928,9 @@ dword_result_t NtWaitForMultipleObjectsEx(dword_t count, lpdword_t handles,
 
   return result;
 }
-DECLARE_XBOXKRNL_EXPORT(NtWaitForMultipleObjectsEx, ExportTag::kImplemented |
-                                                        ExportTag::kThreading |
-                                                        ExportTag::kBlocking);
+DECLARE_XBOXKRNL_EXPORT(NtWaitForMultipleObjectsEx,
+                        ExportTag::kImplemented | ExportTag::kThreading |
+                            ExportTag::kBlocking | ExportTag::kHighFrequency);
 
 dword_result_t NtSignalAndWaitForSingleObjectEx(dword_t signal_handle,
                                                 dword_t wait_handle,
@@ -949,7 +955,7 @@ dword_result_t NtSignalAndWaitForSingleObjectEx(dword_t signal_handle,
 }
 DECLARE_XBOXKRNL_EXPORT(NtSignalAndWaitForSingleObjectEx,
                         ExportTag::kImplemented | ExportTag::kThreading |
-                            ExportTag::kBlocking);
+                            ExportTag::kBlocking | ExportTag::kHighFrequency);
 
 dword_result_t KfAcquireSpinLock(lpdword_t lock_ptr) {
   // XELOGD(