core: Promote CPU/GPU threads to time critical

And also demote Audren and CoreTiming to High thread priority.

src/audio_core/renderer/adsp/audio_renderer.cpp

@@ -135,7 +135,7 @@ void AudioRenderer::ThreadFunc() {
     static constexpr char name[]{"AudioRenderer"};
     MicroProfileOnThreadCreate(name);
     Common::SetCurrentThreadName(name);
-    Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
     if (mailbox->ADSPWaitMessage() != RenderMessage::AudioRenderer_InitializeOK) {
         LOG_ERROR(Service_Audio,
                   "ADSP Audio Renderer -- Failed to receive initialize message from host!");

src/core/core_timing.cpp

@@ -53,7 +53,7 @@ void CoreTiming::ThreadEntry(CoreTiming& instance) {
     static constexpr char name[] = "HostTiming";
     MicroProfileOnThreadCreate(name);
     Common::SetCurrentThreadName(name);
-    Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
     instance.on_thread_init();
     instance.ThreadLoop();
     MicroProfileOnThreadExit();

src/core/cpu_manager.cpp

@@ -192,7 +192,7 @@ void CpuManager::RunThread(std::stop_token token, std::size_t core) {
     }
     MicroProfileOnThreadCreate(name.c_str());
     Common::SetCurrentThreadName(name.c_str());
-    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
     auto& data = core_data[core];
     data.host_context = Common::Fiber::ThreadToFiber();
 

src/video_core/gpu_thread.cpp

@@ -25,7 +25,7 @@ static void RunThread(std::stop_token stop_token, Core::System& system,
     SCOPE_EXIT({ MicroProfileOnThreadExit(); });
 
     Common::SetCurrentThreadName(name.c_str());
-    Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
     system.RegisterHostThread();
 
     auto current_context = context.Acquire();