diff --git a/src/Override/OverrideAwareTranslator.php b/src/Override/OverrideAwareTranslator.php
index 0eeb7c0..c06b09b 100644
--- a/src/Override/OverrideAwareTranslator.php
+++ b/src/Override/OverrideAwareTranslator.php
@@ -5,6 +5,7 @@
 namespace CylleneDigital\AiTranslationBundle\Override;
 
 use CylleneDigital\AiTranslationBundle\Catalogue\TranslationCatalogue;
+use CylleneDigital\AiTranslationBundle\Entity\TranslationOverride;
 use CylleneDigital\AiTranslationBundle\Locale\LocaleFallback;
 use CylleneDigital\AiTranslationBundle\Repository\TranslationOverrideRepository;
 use CylleneDigital\AiTranslationBundle\Scope\ScopeProviderInterface;
@@ -307,7 +308,10 @@ private function fetchOverrides(string $locale, string $scope): array
             //   3. within a rank, additional-root catalogues ("@label/…" — themes and
             //      friends, whose files also win at runtime) shadow the main root's;
             //   4. catalogue/key order otherwise.
-            usort($overrides, static fn ($a, $b): int => [-LocaleFallback::rank($a->getLocale()), '' === $a->getScope(), !str_starts_with($a->getCatalogue(), '@'), $a->getCatalogue(), $a->getKey()] <=> [-LocaleFallback::rank($b->getLocale()), '' === $b->getScope(), !str_starts_with($b->getCatalogue(), '@'), $b->getCatalogue(), $b->getKey()]);
+            // The sort key of each row is built once: ranking both locales again in every
+            // comparison weighed more than the query on a large locale.
+            $sortKeys = array_map(static fn (TranslationOverride $override): array => [-LocaleFallback::rank($override->getLocale()), '' === $override->getScope(), !str_starts_with($override->getCatalogue(), '@'), $override->getCatalogue(), $override->getKey()], $overrides);
+            uksort($overrides, static fn (int $a, int $b): int => $sortKeys[$a] <=> $sortKeys[$b]);
 
             $result = [];
             /** @var array<string, array<string, string>> $winningLocale domain => key => the locale that answered */
diff --git a/src/Override/OverrideReader.php b/src/Override/OverrideReader.php
index 5e4fa68..a5d16d4 100644
--- a/src/Override/OverrideReader.php
+++ b/src/Override/OverrideReader.php
@@ -67,11 +67,11 @@ public function getTranslationsForCatalogues(array $catalogues, string $locale,
             }
         }
 
-        foreach ($this->repository->findByLocaleAndCatalogues($locale, $catalogues, $scope) as $override) {
-            $catalogue = $override->getCatalogue();
-            $key = $override->getKey();
+        foreach ($this->repository->findValuesByLocaleAndCatalogues($locale, $catalogues, $scope) as $row) {
+            $catalogue = $row['catalogue'];
+            $key = $row['key'];
             $translations[$catalogue][$key] ??= $empty;
-            $translations[$catalogue][$key]['override'] = $override->getValue();
+            $translations[$catalogue][$key]['override'] = $row['value'];
             $translations[$catalogue][$key]['hasOverride'] = true;
         }
 
@@ -106,13 +106,21 @@ public function getEffectiveOverridesByCatalogue(string $locale, string $scope =
         $overrides = $this->repository->findForRuntime($locale, $scope);
 
         // Least specific locale first, and within a locale the global rows before the
-        // scope's own ones: the later passes overwrite.
-        usort($overrides, static fn (TranslationOverride $a, TranslationOverride $b): int => [LocaleFallback::rank($a->getLocale()), '' === $a->getScope() ? 0 : 1] <=> [LocaleFallback::rank($b->getLocale()), '' === $b->getScope() ? 0 : 1]);
+        // scope's own ones: the later passes overwrite. Bucketed, not sorted: a comparison
+        // that ranks both locales again weighed more than the query on a large locale.
+        $passes = [];
 
+        foreach ($overrides as $override) {
+            $passes[LocaleFallback::rank($override->getLocale()) * 2 + ('' === $override->getScope() ? 0 : 1)][] = $override;
+        }
+
+        ksort($passes);
         $byCatalogue = [];
 
-        foreach ($overrides as $override) {
-            $byCatalogue[$override->getCatalogue()][$override->getKey()] = $override->getValue();
+        foreach ($passes as $pass) {
+            foreach ($pass as $override) {
+                $byCatalogue[$override->getCatalogue()][$override->getKey()] = $override->getValue();
+            }
         }
 
         return $byCatalogue;
@@ -374,12 +382,22 @@ private function inherited(string $locale, string $scope, ?array $catalogues = n
             static fn (array $row): bool => $row['locale'] !== $locale || $row['scope'] !== $scope,
         ));
 
-        usort($rows, static fn (array $a, array $b): int => [-LocaleFallback::rank($a['locale']), '' === $a['scope']] <=> [-LocaleFallback::rank($b['locale']), '' === $b['scope']]);
+        // The more specific locale first, and within a locale the scope's row before the
+        // global one. Bucketed, not sorted: a comparison that ranks both locales again
+        // weighed more than the query on a large locale.
+        $passes = [];
 
+        foreach ($rows as $row) {
+            $passes[-LocaleFallback::rank($row['locale']) * 2 + ('' === $row['scope'] ? 1 : 0)][] = $row;
+        }
+
+        ksort($passes);
         $inherited = [];
 
-        foreach ($rows as $row) {
-            $inherited[$row['catalogue']][(string) $row['key']] ??= ['value' => $row['value'], 'locale' => $row['locale'], 'scope' => $row['scope']];
+        foreach ($passes as $pass) {
+            foreach ($pass as $row) {
+                $inherited[$row['catalogue']][(string) $row['key']] ??= ['value' => $row['value'], 'locale' => $row['locale'], 'scope' => $row['scope']];
+            }
         }
 
         return $inherited;
diff --git a/src/Repository/TranslationOverrideRepository.php b/src/Repository/TranslationOverrideRepository.php
index 6b5d22d..8f86dca 100644
--- a/src/Repository/TranslationOverrideRepository.php
+++ b/src/Repository/TranslationOverrideRepository.php
@@ -88,20 +88,23 @@ public function lockOneByKey(string $key, string $catalogue, string $locale, str
 
     /**
      * The overrides of these catalogues in one (locale, scope): one query for a whole view,
-     * filtered in SQL — a single catalogue costs what it always cost.
+     * filtered in SQL — a single catalogue costs what it always cost. Scalar rows, not
+     * entities: a view reads thousands of them, and building an entity per row (and
+     * leaving it in the host's unit of work) cost more than the query itself.
      *
      * @param list<string> $catalogues
      *
-     * @return list<TranslationOverride>
+     * @return list<array{key: string, catalogue: string, value: string}>
      */
-    public function findByLocaleAndCatalogues(string $locale, array $catalogues, string $scope = ''): array
+    public function findValuesByLocaleAndCatalogues(string $locale, array $catalogues, string $scope = ''): array
     {
         if ([] === $catalogues) {
             return [];
         }
 
-        /** @var list<TranslationOverride> $result */
-        $result = $this->createQueryBuilder('t')
+        /** @var list<array{key: string, catalogue: string, value: string}> $rows */
+        $rows = $this->createQueryBuilder('t')
+            ->select('t.key', 't.catalogue', 't.value')
             ->andWhere('t.locale = :locale')
             ->andWhere('t.catalogue IN (:catalogues)')
             ->andWhere('t.scope = :scope')
@@ -111,9 +114,9 @@ public function findByLocaleAndCatalogues(string $locale, array $catalogues, str
             ->orderBy('t.catalogue', 'ASC')
             ->addOrderBy('t.key', 'ASC')
             ->getQuery()
-            ->getResult();
+            ->getArrayResult();
 
-        return $result;
+        return $rows;
     }
 
     /**
diff --git a/tests/Unit/Estimation/GenerationCostEstimatorTest.php b/tests/Unit/Estimation/GenerationCostEstimatorTest.php
index 00cf153..1d04b28 100644
--- a/tests/Unit/Estimation/GenerationCostEstimatorTest.php
+++ b/tests/Unit/Estimation/GenerationCostEstimatorTest.php
@@ -218,8 +218,11 @@ private function createEstimator(array $frMessages, array $frShopMessages = [],
         $author->method('getAuthorIdentifier')->willReturn(null);
 
         $overrideRepository = $this->createStub(TranslationOverrideRepository::class);
-        $overrideRepository->method('findByLocaleAndCatalogues')->willReturnCallback(static fn (string $locale, array $catalogues, string $scope = ''): array => null !== $overrides
-            ? array_merge(...array_map(static fn (string $catalogue): array => $overrides($locale, $catalogue, $scope), array_values(array_filter($catalogues, is_string(...)))))
+        $overrideRepository->method('findValuesByLocaleAndCatalogues')->willReturnCallback(static fn (string $locale, array $catalogues, string $scope = ''): array => null !== $overrides
+            ? array_map(
+                static fn (TranslationOverride $override): array => ['key' => $override->getKey(), 'catalogue' => $override->getCatalogue(), 'value' => $override->getValue()],
+                array_merge(...array_map(static fn (string $catalogue): array => $overrides($locale, $catalogue, $scope), array_values(array_filter($catalogues, is_string(...))))),
+            )
             : []);
 
         $suggestionRepository = $this->createStub(TranslationSuggestionRepository::class);
diff --git a/tests/Unit/Override/TranslationManagerTest.php b/tests/Unit/Override/TranslationManagerTest.php
index 4c45b23..40fb751 100644
--- a/tests/Unit/Override/TranslationManagerTest.php
+++ b/tests/Unit/Override/TranslationManagerTest.php
@@ -89,9 +89,9 @@ public function testTranslationsMergeFileEntriesWithOverrides(): void
         $orphan->setValue('Orpheline');
 
         $this->repository
-            ->method('findByLocaleAndCatalogues')
+            ->method('findValuesByLocaleAndCatalogues')
             ->with('fr_FR', ['shop/Product/messages'])
-            ->willReturn([$override, $orphan]);
+            ->willReturn(self::rows($override, $orphan));
 
         $manager = $this->createManager();
         $translations = $manager->getTranslationsForCatalogue('shop/Product/messages', 'fr_FR');
@@ -110,7 +110,7 @@ public function testTranslationsMergeFileEntriesWithOverrides(): void
 
     public function testAKeyOnlyTranslatedInAnotherLanguageIsMissing(): void
     {
-        $this->repository->method('findByLocaleAndCatalogues')->willReturn([]);
+        $this->repository->method('findValuesByLocaleAndCatalogues')->willReturn([]);
 
         $manager = $this->createManager();
 
@@ -215,10 +215,10 @@ public function testAScopedBrowseShowsTheGlobalOverrideAsInherited(): void
         $scoped->setValue('Ajouter au panier (B2B)');
 
         $this->repository
-            ->method('findByLocaleAndCatalogues')
+            ->method('findValuesByLocaleAndCatalogues')
             ->willReturnCallback(static fn (string $locale, array $catalogues, string $scope = ''): array => match ($scope) {
-                '' => [$global],
-                'b2b' => [$scoped],
+                '' => self::rows($global),
+                'b2b' => self::rows($scoped),
                 default => [],
             });
         // What the entry can inherit from — its own b2b row included, set apart by the reader.
@@ -312,4 +312,14 @@ private function suggestionRepository(): TranslationSuggestionRepository
 
         return $repository;
     }
+
+    /**
+     * What the view reads of these overrides: scalar rows.
+     *
+     * @return list<array{key: string, catalogue: string, value: string}>
+     */
+    private static function rows(TranslationOverride ...$overrides): array
+    {
+        return array_map(static fn (TranslationOverride $override): array => ['key' => $override->getKey(), 'catalogue' => $override->getCatalogue(), 'value' => $override->getValue()], array_values($overrides));
+    }
 }
diff --git a/tests/Unit/Suggestion/TranslationAiServiceTest.php b/tests/Unit/Suggestion/TranslationAiServiceTest.php
index 33d8c20..f577eb7 100644
--- a/tests/Unit/Suggestion/TranslationAiServiceTest.php
+++ b/tests/Unit/Suggestion/TranslationAiServiceTest.php
@@ -115,8 +115,11 @@ protected function setUp(): void
             $this->staged[] = $suggestion;
         });
         $this->suggestionRepository->method('findPending')->willReturnCallback(fn (): array => $this->pending);
-        $this->overrideRepository->method('findByLocaleAndCatalogues')->willReturnCallback(fn (string $locale, array $catalogues, string $scope = ''): array => null !== $this->overrides
-            ? array_merge(...array_map(fn (string $catalogue): array => ($this->overrides)($locale, $catalogue, $scope), array_values(array_filter($catalogues, is_string(...)))))
+        $this->overrideRepository->method('findValuesByLocaleAndCatalogues')->willReturnCallback(fn (string $locale, array $catalogues, string $scope = ''): array => null !== $this->overrides
+            ? array_map(
+                static fn (TranslationOverride $override): array => ['key' => $override->getKey(), 'catalogue' => $override->getCatalogue(), 'value' => $override->getValue()],
+                array_merge(...array_map(fn (string $catalogue): array => ($this->overrides)($locale, $catalogue, $scope), array_values(array_filter($catalogues, is_string(...))))),
+            )
             : []);
         // The chain read behind the inherited values, served from the same per-test rows.
         $this->overrideRepository->method('findInheritable')->willReturnCallback(function (array $locales, string $scope, ?array $catalogues = null): array {