diff --git a/.github/workflows/build-on-pr.yml b/.github/workflows/build-on-pr.yml
index fa18da76db..a66764ac3e 100644
--- a/.github/workflows/build-on-pr.yml
+++ b/.github/workflows/build-on-pr.yml
@@ -8,8 +8,6 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    env:
-      NODE_OPTIONS: '--max-old-space-size=8192'
     
     steps:
       - name: Checkout code
@@ -25,7 +23,20 @@ jobs:
         run: npm ci
 
       - name: Build Docusaurus
-        run: npm run build
+        run: npm run build -- --no-minify
+        env:
+          # original defaults https://github.com/facebook/docusaurus/blob/main/packages/docusaurus/src/ssg/ssgEnv.ts
+          
+          # GH Runner has only 4 cores https://docs.github.com/en/actions/reference/runners/github-hosted-runners
+          DOCUSAURUS_SSR_CONCURRENCY: '2'
+
+          # Aligned with the one above
+          DOCUSAURUS_SSG_WORKER_THREAD_COUNT: '1'
+
+          # Use 128MB per thread until it's recycled
+          DOCUSAURUS_SSG_WORKER_THREAD_RECYCLER_MAX_MEMORY: '134217728'
+
+          NODE_OPTIONS: '--max-old-space-size=12288'
         
       - name: Upload build artifacts
         uses: actions/upload-artifact@v4