diff --git a/bench/node_name_resolver_is_string_name_bench.php b/bench/node_name_resolver_is_string_name_bench.php
new file mode 100644
index 00000000000..db0d8a31663
--- /dev/null
+++ b/bench/node_name_resolver_is_string_name_bench.php
@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Benchmark for NodeNameResolver::isStringName().
+ *
+ * On a non-matching name (the common case - a rule tests isName against many candidates, most
+ * fail) the method falls through to a wildcard-character guard. The array-const + str_contains
+ * loop scanned the needle once per wildcard char; a single strpbrk() over the char set does it
+ * in one C-level pass with identical throw behaviour.
+ *
+ * Run on both branches to compare:
+ *   php bench/node_name_resolver_is_string_name_bench.php
+ *
+ * Reports CPU time (user+sys) and wall time; CPU is the reliable metric, wall is noisy
+ * under concurrent load.
+ */
+
+use Rector\DependencyInjection\LazyContainerFactory;
+use Rector\NodeNameResolver\NodeNameResolver;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+const CALLS = 200_000; // isStringName() calls per run
+const REPEAT = 60;     // outer repeats
+
+$rectorConfig = (new LazyContainerFactory())->create();
+$rectorConfig->boot();
+
+/** @var NodeNameResolver $nodeNameResolver */
+$nodeNameResolver = $rectorConfig->make(NodeNameResolver::class);
+
+// non-matching, wildcard-free pairs - the hot fall-through path to the guard
+$resolved = 'App\\Service\\SomeLongClassName';
+$desired = 'App\\Service\\OtherLongClassName';
+
+$cpuSeconds = static function (): float {
+    $usage = getrusage();
+    return $usage['ru_utime.tv_sec'] + $usage['ru_utime.tv_usec'] / 1_000_000
+        + $usage['ru_stime.tv_sec'] + $usage['ru_stime.tv_usec'] / 1_000_000;
+};
+
+$run = static function () use ($nodeNameResolver, $resolved, $desired): void {
+    for ($i = 0; $i < CALLS; ++$i) {
+        $nodeNameResolver->isStringName($resolved, $desired);
+    }
+};
+
+$run(); // warm up, excluded
+
+$cpuStart = $cpuSeconds();
+$wallStart = hrtime(true);
+for ($repeat = 0; $repeat < REPEAT; ++$repeat) {
+    $run();
+}
+
+printf('NodeNameResolver::isStringName benchmark%s', PHP_EOL);
+printf('  calls=%d repeat=%d%s', CALLS, REPEAT, PHP_EOL);
+printf('%s', PHP_EOL);
+printf('  isStringName  cpu=%.4fs  wall=%.4fs%s', $cpuSeconds() - $cpuStart, (hrtime(true) - $wallStart) / 1_000_000_000, PHP_EOL);
diff --git a/src/NodeNameResolver/NodeNameResolver.php b/src/NodeNameResolver/NodeNameResolver.php
index 90e5158b20e..1eb49fdd4e5 100644
--- a/src/NodeNameResolver/NodeNameResolver.php
+++ b/src/NodeNameResolver/NodeNameResolver.php
@@ -34,7 +34,7 @@ final class NodeNameResolver
     /**
      * Used to check if a string might contain a regex or fnmatch pattern
      */
-    private const array REGEX_WILDCARD_CHARS = ['*', '#', '~', '/'];
+    private const string REGEX_WILDCARD_CHARS = '*#~/';
 
     /**
      * @var array<string, NodeNameResolverInterface|null>
@@ -181,12 +181,10 @@ public function isStringName(string $resolvedName, string $desiredName): bool
             return true;
         }
 
-        foreach (self::REGEX_WILDCARD_CHARS as $char) {
-            if (str_contains($desiredName, $char)) {
-                throw new ShouldNotHappenException(
-                    'Matching of regular expressions is no longer supported. Use $this->getName() and compare with e.g. str_ends_with() or str_starts_with() instead.'
-                );
-            }
+        if (strpbrk($desiredName, self::REGEX_WILDCARD_CHARS) !== false) {
+            throw new ShouldNotHappenException(
+                'Matching of regular expressions is no longer supported. Use $this->getName() and compare with e.g. str_ends_with() or str_starts_with() instead.'
+            );
         }
 
         return false;