diff --git a/.github/workflows/build-size.yml b/.github/workflows/build-size.yml
index 8a492a3c6e95..1dcba34a320b 100644
--- a/.github/workflows/build-size.yml
+++ b/.github/workflows/build-size.yml
@@ -13,6 +13,7 @@ jobs:
       - uses: preactjs/compressed-size-action@v2
         with:
           repo-token: '${{ secrets.GITHUB_TOKEN }}'
+          build-script: 'build:v2:en'
           pattern: '{website/build/main*js,website/build/styles*css,website/build/index.html,website/build/blog/**/introducing-docusaurus/*,website/build/docs/introduction/index.html}'
           strip-hash: '\.([^;]\w{7})\.'
           minimum-change-threshold: 100
diff --git a/.github/workflows/lighthouseCI.yml b/.github/workflows/lighthouseCI.yml
index 3c1c6659cd0c..86350bc70df8 100644
--- a/.github/workflows/lighthouseCI.yml
+++ b/.github/workflows/lighthouseCI.yml
@@ -23,6 +23,7 @@ jobs:
         id: netlify
         with:
           site_name: 'docusaurus-2'
+          max_timeout: 300
       - name: Audit URLs using Lighthouse
         id: lighthouse_audit
         uses: treosh/lighthouse-ci-action@v3
diff --git a/.github/workflows/migration-cli-e2e-test.yml b/.github/workflows/migration-cli-e2e-test.yml
index a75df136059b..136e197ee535 100644
--- a/.github/workflows/migration-cli-e2e-test.yml
+++ b/.github/workflows/migration-cli-e2e-test.yml
@@ -1,15 +1,25 @@
 name: Migration CLI E2E Test
 
 on:
-  push:
-    branches:
-      - master
   pull_request:
     branches:
       - master
 
 jobs:
+  check:
+    runs-on: ubuntu-latest
+    outputs:
+      migration: ${{ steps.filter.outputs.migration }}
+    steps:
+      - uses: dorny/paths-filter@v2
+        id: filter
+        with:
+          filters: |
+            migration:
+              - 'packages/docusaurus-migration/**'
   build:
+    needs: check
+    if: ${{ needs.check.outputs.migration == 'true' }}
     runs-on: ubuntu-latest
     strategy:
       matrix:
diff --git a/.github/workflows/nodejs-windows.yml b/.github/workflows/nodejs-windows.yml
index e7bde9a7cdc3..85c91ad573f7 100644
--- a/.github/workflows/nodejs-windows.yml
+++ b/.github/workflows/nodejs-windows.yml
@@ -1,9 +1,6 @@
 name: Windows Build Test
 
 on:
-  push:
-    branches:
-      - master
   pull_request:
     branches:
       - master
@@ -16,6 +13,13 @@ jobs:
         node: ['10']
     steps:
       - uses: actions/checkout@v2
+      - uses: dorny/paths-filter@v2
+        id: filter
+        with:
+          filters: |
+            v1:
+              - 'packages/docusaurus-1.x/**'
+              - 'packages/docusaurus-init-1.x/**'
       - name: Use Node.js ${{ matrix.node }}
         uses: actions/setup-node@v1
         with:
@@ -23,6 +27,7 @@ jobs:
       - name: Installation
         run: yarn || yarn || yarn # 3 attempts to avoid timeout errors...
       - name: Docusaurus 1 Build
+        if: steps.filter.outputs.v1 == 'true'
         run: yarn build:v1
       - name: Docusaurus 2 Build
         run: yarn build:v2
diff --git a/package.json b/package.json
index f021a6a99597..e7664b32e34d 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
     "build:v2": "yarn workspace docusaurus-2-website build",
     "build:v2:baseUrl": "yarn workspace docusaurus-2-website build:baseUrl",
     "build:v2:blogOnly": "yarn workspace docusaurus-2-website build:blogOnly",
+    "build:v2:en": "yarn workspace docusaurus-2-website build --locale en",
     "serve:v1": "serve website-1.x/build/docusaurus",
     "serve:v2": "yarn workspace docusaurus-2-website serve",
     "serve:v2:baseUrl": "serve website",