[+] AURORA_STEADY_TIME_SHID_CPU_XP_MODE

Source/Time/AuClock.cpp

@@ -135,6 +135,20 @@
             Aurora::InitNTAddresses();
             AuSwInfo::InitSwInfoEarly();
          
+            {
+                // Might be useful for real-time applications under busted motherboards and hypervisors.
+                // Should the QPC fastpath be invalidated, and the kernel hit each time because of NT HAL retardation,
+                //  this can be used to enforce a userland-only clock query, when Windows would otherwise resort to a 
+                //  system call.
+                // Pretty much every Win32 environment and platform should support this
+                wchar_t buffer[64];
+                if (GetEnvironmentVariableW(L"AURORA_STEADY_TIME_SHID_CPU_XP_MODE", buffer, AuArraySize(buffer)))
+                {
+                    _gNTClockMode = 0;
+                    return;
+                }
+            }
+
             if constexpr (AuBuild::kCurrentPlatform == AuBuild::EPlatform::ePlatformWin32)
             {
                 if (!AuSwInfo::IsWindows7OrGreater())