diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce75291b..b33a202b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased](https://github.com/Pollora/framework/compare/v13.34.0-beta.2...develop)
 
+### Fixed
+- A plugin with neither `app/` nor `src/` — one that only ships blocks, which need no class — was discovered from its root, `node_modules` included: 2 to 7 seconds on every request in debug mode, measured on a blocks-only plugin with a Vite build. Its other top-level directories are scanned instead, never `node_modules`, `vendor`, `bower_components`, `build`, `dist`, `public`, `resources`, `assets`, `languages`, `lang` or a hidden directory
+
 ## [v13.34.0-beta.2](https://github.com/Pollora/framework/compare/v13.34.0-beta...v13.34.0-beta.2) - 2026-09-30
 
 ### Added
diff --git a/src/Plugin/Application/Services/PluginRegistrar.php b/src/Plugin/Application/Services/PluginRegistrar.php
index fe61095d..c7ee2724 100644
--- a/src/Plugin/Application/Services/PluginRegistrar.php
+++ b/src/Plugin/Application/Services/PluginRegistrar.php
@@ -26,6 +26,26 @@
  */
 class PluginRegistrar
 {
+    /**
+     * Directories of a plugin root that never hold discoverable classes.
+     *
+     * Dependencies, build output, views and assets, translations, and hidden
+     * directories (`.git`, `.github`). Walking them costs the request and
+     * finds nothing that belongs to the plugin.
+     */
+    private const array NON_DISCOVERABLE_DIRECTORIES = [
+        'node_modules',
+        'vendor',
+        'bower_components',
+        'build',
+        'dist',
+        'public',
+        'resources',
+        'assets',
+        'languages',
+        'lang',
+    ];
+
     /**
      * Collection of registered plugins.
      *
@@ -246,7 +266,9 @@ protected function discoverPluginStructures(PluginModuleInterface $plugin): void
         try {
             $discoveryService = $this->app->get(ModuleDiscoveryOrchestratorInterface::class);
 
-            $discoveryService->discover($this->getPluginDiscoveryPath($plugin));
+            foreach ($this->getPluginDiscoveryPaths($plugin) as $path) {
+                $discoveryService->discover($path);
+            }
         } catch (\Exception $exception) {
             $this->logError(sprintf('Plugin discovery error for %s: ', $plugin->getName()).$exception->getMessage());
         }
@@ -269,20 +291,37 @@ protected function discoverPluginStructures(PluginModuleInterface $plugin): void
      * out. It also found ten PHP files shipped inside `@wordpress/style-engine`
      * and handed them to discovery, which is its own kind of wrong.
      *
-     * The root is still used when a plugin has neither directory, so a plugin
-     * that keeps its classes at the top level is discovered as before.
+     * A plugin with neither directory — one that only ships blocks, which
+     * need no class at all — is scanned in its other top-level directories,
+     * never in the ones listed in {@see NON_DISCOVERABLE_DIRECTORIES}. Its
+     * root was scanned whole before: 2 to 7 seconds per request, measured on
+     * a blocks-only plugin with a Vite build.
+     *
+     * @return list<string>
      */
-    protected function getPluginDiscoveryPath(PluginModuleInterface $plugin): string
+    protected function getPluginDiscoveryPaths(PluginModuleInterface $plugin): array
     {
         $basePath = rtrim($plugin->getPath(), '/');
 
         foreach (['/app', '/src'] as $directory) {
             if (is_dir($basePath.$directory)) {
-                return $basePath.$directory;
+                return [$basePath.$directory];
+            }
+        }
+
+        $paths = [];
+
+        foreach (scandir($basePath) ?: [] as $entry) {
+            if (str_starts_with($entry, '.') || in_array($entry, self::NON_DISCOVERABLE_DIRECTORIES, true)) {
+                continue;
+            }
+
+            if (is_dir($basePath.'/'.$entry)) {
+                $paths[] = $basePath.'/'.$entry;
             }
         }
 
-        return $basePath;
+        return $paths;
     }
 
     /**
diff --git a/tests/Unit/Plugin/PluginDiscoveryPathTest.php b/tests/Unit/Plugin/PluginDiscoveryPathTest.php
index 0f207c01..74f783e9 100644
--- a/tests/Unit/Plugin/PluginDiscoveryPathTest.php
+++ b/tests/Unit/Plugin/PluginDiscoveryPathTest.php
@@ -21,9 +21,13 @@ function registrar(): object
 {
     return new class(new Container, new WordPressPluginParser) extends PluginRegistrar
     {
-        public function discoveryPathFor(PluginModuleInterface $plugin): string
+        /** @return list<string> */
+        public function discoveryPathsFor(PluginModuleInterface $plugin): array
         {
-            return $this->getPluginDiscoveryPath($plugin);
+            $paths = $this->getPluginDiscoveryPaths($plugin);
+            sort($paths);
+
+            return $paths;
         }
     };
 }
@@ -58,26 +62,41 @@ function pluginAt(string $path): PluginModuleInterface
     it('scans app/ when the plugin has one', function (): void {
         mkdir($this->root.'/app');
 
-        expect(registrar()->discoveryPathFor(pluginAt($this->root)))->toBe($this->root.'/app');
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root)))->toBe([$this->root.'/app']);
     });
 
     it('falls back to src/', function (): void {
         mkdir($this->root.'/src');
 
-        expect(registrar()->discoveryPathFor(pluginAt($this->root)))->toBe($this->root.'/src');
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root)))->toBe([$this->root.'/src']);
     });
 
     it('prefers app/ over src/ when both are there', function (): void {
         mkdir($this->root.'/app');
         mkdir($this->root.'/src');
 
-        expect(registrar()->discoveryPathFor(pluginAt($this->root)))->toBe($this->root.'/app');
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root)))->toBe([$this->root.'/app']);
+    });
+
+    it('scans the other top-level directories of a plugin that has neither', function (): void {
+        // A plugin keeping its classes in, say, includes/ is still discovered.
+        mkdir($this->root.'/includes');
+        mkdir($this->root.'/config');
+
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root)))
+            ->toBe([$this->root.'/config', $this->root.'/includes']);
     });
 
-    it('keeps scanning the root for a plugin that has neither', function (): void {
-        // A plugin holding its classes at the top level is discovered exactly
-        // as it was; nothing is narrowed away from it.
-        expect(registrar()->discoveryPathFor(pluginAt($this->root)))->toBe($this->root);
+    it('never scans a directory that cannot hold discoverable classes', function (): void {
+        // A blocks-only plugin: no class, a Vite build. Its root was scanned
+        // whole, node_modules included — 2 to 7 seconds on every request.
+        foreach (['node_modules', 'vendor', 'build', 'dist', 'public', 'resources', 'assets', 'languages', '.git', '.github'] as $directory) {
+            mkdir($this->root.'/'.$directory);
+        }
+
+        touch($this->root.'/demo-plugin.php');
+
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root)))->toBe([]);
     });
 
     it('never hands back a directory holding node_modules when app/ exists', function (): void {
@@ -85,15 +104,12 @@ function pluginAt(string $path): PluginModuleInterface
         mkdir($this->root.'/app');
         mkdir($this->root.'/node_modules');
 
-        $path = registrar()->discoveryPathFor(pluginAt($this->root));
-
-        expect($path)->toBe($this->root.'/app')
-            ->and(is_dir($path.'/node_modules'))->toBeFalse();
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root)))->toBe([$this->root.'/app']);
     });
 
     it('does not care how the path was spelled', function (): void {
         mkdir($this->root.'/app');
 
-        expect(registrar()->discoveryPathFor(pluginAt($this->root.'/')))->toBe($this->root.'/app');
+        expect(registrar()->discoveryPathsFor(pluginAt($this->root.'/')))->toBe([$this->root.'/app']);
     });
 });