diff --git a/cpython-windows/build.py b/cpython-windows/build.py
index 47bdc493..c1864966 100644
--- a/cpython-windows/build.py
+++ b/cpython-windows/build.py
@@ -653,6 +653,10 @@ def run_msbuild(
         # This can also work around known incompatibilities with the Windows 11
         # SDK as of at least CPython 3.9.7.
         f"/property:DefaultWindowsSDKVersion={windows_sdk_version}",
+        # Use ClangCL for better build and runtime performance
+        # https://github.com/python/cpython/issues/130090
+        "/p:PlatformToolset=ClangCL",
+        "/p:PreferredToolArchitecture=%s" % platform,
     ]
 
     if freethreaded:
@@ -1069,6 +1073,13 @@ def find_additional_dependencies(project: pathlib.Path):
     exts = ("lib", "exp")
 
     for ext in exts:
+        # On 3.14+, we're building with ClangCL which does not produce `.exp`
+        # files.
+        if ext == "exp" and python_majmin == "314":
+            # TODO(zanieb): Scope this specifically to use of ClangCL instead of
+            # MSVC / determine if it's a bug that this file is missing.
+            continue
+
         source = outputs_path / ("python%s%s.%s" % (python_majmin, lib_suffix, ext))
         dest = core_dir / ("python%s%s.%s" % (python_majmin, lib_suffix, ext))
         log("copying %s" % source)