Reduce pool maintenance delay and update debug mode check

The worker pool maintenance delay has been reduced from 10,000 to 1,000 units in WorkerPool.php for smoother operation. In Utils.php, the check for debug mode has been changed from a defined constant to a variable, enhancing maintainability and effectiveness of debug mode functionality.

src/Utils.php

@@ -85,7 +85,7 @@ public static function debug(string $message): void
 
     public static function debugSpeed(string $messPrefix, int $lines, float $startTimer): void
     {
-        if (\defined('DEBUG_MODE')) {
+        if (self::$debugMode) {
             $kiloLines = \round(($lines / (\microtime(true) - $startTimer)) / 1000);
             self::debug("{$messPrefix} <blue>" . \number_format($kiloLines) . 'K</blue> lines/sec');
         }

src/Workers/WorkerPool.php

@@ -23,7 +23,7 @@
 final class WorkerPool
 {
     private const FALLBACK_CPU_COUNT = 1;
-    private const POOL_MAINTENANCE_DELAY = 10_000; // Small delay to prevent overload CPU
+    private const POOL_MAINTENANCE_DELAY = 1_000; // Small delay to prevent overload CPU
 
     private static ?string $bootstrap = null;
     private int            $maxThreads;