diff --git a/.github/workflows/reusable-performance.yml b/.github/workflows/reusable-performance.yml
index e5c29aa0b1849..c9dad187499ce 100644
--- a/.github/workflows/reusable-performance.yml
+++ b/.github/workflows/reusable-performance.yml
@@ -94,7 +94,6 @@ jobs:
   # - Compare results.
   # - Add workflow summary.
   # - Set the base sha.
-  # - Set commit details.
   # - Publish performance results.
   # - Ensure version-controlled files are not modified or deleted.
   performance:
@@ -312,23 +311,12 @@ jobs:
             const baseRef = await github.rest.git.getRef({ owner: context.repo.owner, repo: context.repo.repo, ref: 'tags/${{ env.BASE_TAG }}' });
             return baseRef.data.object.sha;
 
-      - name: Set commit details
-        # Only needed when publishing results.
-        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/trunk' && ! inputs.memcached }}
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        id: commit-timestamp
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            const commit_details = await github.rest.git.getCommit({ owner: context.repo.owner, repo: context.repo.repo, commit_sha: context.sha });
-            return parseInt((new Date( commit_details.data.author.date ).getTime() / 1000).toFixed(0))
-
       - name: Publish performance results
         # Only publish results on pushes to trunk.
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/trunk' && ! inputs.memcached }}
         env:
           BASE_SHA: ${{ steps.base-sha.outputs.result }}
-          COMMITTED_AT: ${{ steps.commit-timestamp.outputs.result }}
+          COMMITTED_AT: $(git show -s $GITHUB_SHA --format="%cI")
           CODEVITALS_PROJECT_TOKEN: ${{ secrets.CODEVITALS_PROJECT_TOKEN }}
           HOST_NAME: "www.codevitals.run"
         run: |