diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9f61c5c914c24..5d76a4efec936 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -155,8 +155,12 @@ jobs:
       - name: Tests
         id: test
         run: npx hereby test:tsc
+        env:
+          TMPDIR: ${{ runner.temp }}
       - name: Benchmarks
         run: npx hereby test:benchmarks
+        env:
+          TMPDIR: ${{ runner.temp }}
       - run: git add .
       - uses: codecov/codecov-action@303a32d7a59b442fa8d48b6a1cc6825c09c847a5 # v7.1.1
         if: ${{ always() && matrix.config.coverage && github.event_name != 'merge_group' }}
diff --git a/tsc/cmd/tsc/default.pgo b/tsc/cmd/tsc/default.pgo
new file mode 100644
index 0000000000000..5a8a51c70ac72
Binary files /dev/null and b/tsc/cmd/tsc/default.pgo differ