diff --git a/core/gather/base-artifacts.js b/core/gather/base-artifacts.js
index 5bb2a639cda4..2fe3757d5b90 100644
--- a/core/gather/base-artifacts.js
+++ b/core/gather/base-artifacts.js
@@ -18,8 +18,10 @@ import {
  * @return {Promise<LH.BaseArtifacts>}
  */
 async function getBaseArtifacts(resolvedConfig, driver, context) {
-  const BenchmarkIndex = await getBenchmarkIndex(driver.executionContext);
-  const {userAgent, product} = await getBrowserVersion(driver.defaultSession);
+  const [BenchmarkIndex, {userAgent, product}] = await Promise.all([
+    getBenchmarkIndex(driver.executionContext),
+    getBrowserVersion(driver.defaultSession),
+  ]);
 
   return {
     // Meta artifacts.
diff --git a/core/gather/gatherers/link-elements.js b/core/gather/gatherers/link-elements.js
index 9e4c86cf5c09..41e210b9ed2d 100644
--- a/core/gather/gatherers/link-elements.js
+++ b/core/gather/gatherers/link-elements.js
@@ -177,8 +177,10 @@ class LinkElements extends BaseGatherer {
    */
   async getArtifact(context) {
     const devtoolsLog = context.dependencies.DevtoolsLog;
-    const fromDOM = await LinkElements.getLinkElementsInDOM(context);
-    const fromHeaders = await LinkElements.getLinkElementsInHeaders(context, devtoolsLog);
+    const [fromDOM, fromHeaders] = await Promise.all([
+      LinkElements.getLinkElementsInDOM(context),
+      LinkElements.getLinkElementsInHeaders(context, devtoolsLog),
+    ]);
     const linkElements = fromDOM.concat(fromHeaders);
 
     for (const link of linkElements) {
diff --git a/core/gather/gatherers/service-worker.js b/core/gather/gatherers/service-worker.js
index 1c147af33c6f..270af6c2e164 100644
--- a/core/gather/gatherers/service-worker.js
+++ b/core/gather/gatherers/service-worker.js
@@ -19,8 +19,10 @@ class ServiceWorker extends BaseGatherer {
    */
   async getArtifact(context) {
     const session = context.driver.defaultSession;
-    const {versions} = await serviceWorkers.getServiceWorkerVersions(session);
-    const {registrations} = await serviceWorkers.getServiceWorkerRegistrations(session);
+    const [{versions}, {registrations}] = await Promise.all([
+      serviceWorkers.getServiceWorkerVersions(session),
+      serviceWorkers.getServiceWorkerRegistrations(session),
+    ]);
 
     return {
       versions,