diff --git a/Dockerfile b/Dockerfile
index fa087a3b..101af29c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -45,6 +45,8 @@ COPY --from=builder /src/lib ./
 COPY --from=builder /src/public ./public
 COPY --from=builder /src/assets ./assets
 
+ENV NODE_ENV="production"
+
 VOLUME /data
 EXPOSE 9993
 EXPOSE 7775
diff --git a/changelog.d/904.misc b/changelog.d/904.misc
new file mode 100644
index 00000000..30e92ca5
--- /dev/null
+++ b/changelog.d/904.misc
@@ -0,0 +1 @@
+Switch expressjs to production mode for improved performance.
diff --git a/docs/setup.md b/docs/setup.md
index 8b930192..caf71662 100644
--- a/docs/setup.md
+++ b/docs/setup.md
@@ -27,7 +27,12 @@ cd matrix-hookshot
 yarn # or npm i
 ```
 
-Starting the bridge (after configuring it), is a matter of running `yarn start`.
+Starting the bridge (after configuring it), is a matter of setting the `NODE_ENV` environment variable to `production` or `development`, depending if you want [better performance or more verbose logging](https://expressjs.com/en/advanced/best-practice-performance.html#set-node_env-to-production), and then running it:
+
+
+```bash
+NODE_ENV=production yarn start
+```
 
 ## Installation via Docker
 
diff --git a/src/ListenerService.ts b/src/ListenerService.ts
index 32ef379f..62f2168e 100644
--- a/src/ListenerService.ts
+++ b/src/ListenerService.ts
@@ -30,6 +30,7 @@ export class ListenerService {
         }
         for (const listenerConfig of config) {
             const app = expressApp();
+            app.set('x-powered-by', false);
             app.use(Handlers.requestHandler());
             this.listeners.push({
                 config: listenerConfig,