diff --git a/src/nxemu-cpu/CMakeLists.txt b/src/nxemu-cpu/CMakeLists.txt
index dda0cc21..4568da08 100644
--- a/src/nxemu-cpu/CMakeLists.txt
+++ b/src/nxemu-cpu/CMakeLists.txt
@@ -516,6 +516,21 @@ target_include_directories(nxemu-cpu PRIVATE
     ${CMAKE_SOURCE_DIR}/external/xbyak
 )
 
+# Optimize the x64 JIT together at link time in native MSVC Release builds.
+# Keep other compilers, architectures and configurations on their existing path.
+if(ARCHITECTURE_x86_64 AND CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+    get_target_property(_nxemu_jit_sources nxemu-cpu SOURCES)
+    foreach(_nxemu_jit_source IN LISTS _nxemu_jit_sources)
+        if(_nxemu_jit_source MATCHES "^dynarmic/(backend/x64|frontend/A64|ir|common)/.*[.]cpp$"
+           OR _nxemu_jit_source STREQUAL "dynarmic/frontend/imm.cpp"
+           OR _nxemu_jit_source STREQUAL "dynarmic/backend/block_range_information.cpp")
+            set_property(SOURCE ${_nxemu_jit_source} APPEND PROPERTY
+                COMPILE_OPTIONS "$<$<CONFIG:Release>:/GL>")
+        endif()
+    endforeach()
+    target_link_options(nxemu-cpu PRIVATE "$<$<CONFIG:Release>:/LTCG>")
+endif()
+
 target_link_libraries(nxemu-cpu PRIVATE
     common
     fmt
diff --git a/src/nxemu-cpu/dynarmic/backend/x64/reg_alloc.cpp b/src/nxemu-cpu/dynarmic/backend/x64/reg_alloc.cpp
index 61a3a6cd..8303c480 100644
--- a/src/nxemu-cpu/dynarmic/backend/x64/reg_alloc.cpp
+++ b/src/nxemu-cpu/dynarmic/backend/x64/reg_alloc.cpp
@@ -6,6 +6,7 @@
 #include "dynarmic/backend/x64/reg_alloc.h"
 
 #include <algorithm>
+#include <boost/container/small_vector.hpp>
 #include <numeric>
 #include <utility>
 
@@ -520,7 +521,7 @@ void RegAlloc::EmitVerboseDebuggingOutput() {
 }
 
 HostLoc RegAlloc::SelectARegister(const std::vector<HostLoc>& desired_locations) const {
-    std::vector<HostLoc> candidates = desired_locations;
+    boost::container::small_vector<HostLoc, 16> candidates(desired_locations.begin(), desired_locations.end());
 
     // Find all locations that have not been allocated..
     const auto allocated_locs = std::partition(candidates.begin(), candidates.end(), [this](auto loc) {
diff --git a/src/nxemu-cpu/nxemu-cpu.vcxproj b/src/nxemu-cpu/nxemu-cpu.vcxproj
index 12808405..43c4b4f7 100644
--- a/src/nxemu-cpu/nxemu-cpu.vcxproj
+++ b/src/nxemu-cpu/nxemu-cpu.vcxproj
@@ -394,6 +394,16 @@
       <Project>{250224f2-2e89-410e-8bdb-875959daba2c}</Project>
     </ProjectReference>
   </ItemGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Link>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile Update="dynarmic\backend\x64\*.cpp;dynarmic\frontend\A64\**\*.cpp;dynarmic\ir\**\*.cpp;dynarmic\common\**\*.cpp;dynarmic\frontend\imm.cpp;dynarmic\backend\block_range_information.cpp">
+      <WholeProgramOptimization>true</WholeProgramOptimization>
+    </ClCompile>
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>