misc: 延长批处理间隔时间，调整查询Profile用的线程数量

src/main/java/xyz/nifeather/morph/misc/skins/PlayerSkinProvider.java

@@ -49,7 +49,7 @@ private void load()
     {
         Bukkit.getAsyncScheduler().runAtFixedRate(plugin,
                 task -> this.batchPlayerInfo(),
-                1000, 1000,
+                1500, 1500,
                 TimeUnit.MILLISECONDS);
     }
 

src/main/java/xyz/nifeather/morph/misc/skins/ProfileLookupExecutor.java

@@ -4,9 +4,7 @@
 import org.jetbrains.annotations.Nullable;
 import xyz.nifeather.morph.MorphPlugin;
 
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
 public class ProfileLookupExecutor
@@ -16,22 +14,30 @@ public static ExecutorService executor()
     {
         var executor = EXECUTOR;
         if (executor == null || executor.isShutdown())
+        {
             EXECUTOR = executor = createExecutor();
+        }
 
         return executor;
     }
 
+    private static int getThreadCount()
+    {
+        return Math.max(4, Runtime.getRuntime().availableProcessors() / 2);
+    }
+
     private static ExecutorService createExecutor()
     {
-        return Executors.newFixedThreadPool(5, new ThreadFactory()
+        return Executors.newFixedThreadPool(getThreadCount(), new ThreadFactory()
         {
             private final AtomicInteger threadCount = new AtomicInteger(0);
 
             @Override
             public Thread newThread(@NotNull Runnable runnable)
             {
                 Thread thread = new Thread(runnable);
-                thread.setName("FeatherMorph Profile Executor #" + this.threadCount.getAndIncrement());
+                var threadId = this.threadCount.getAndIncrement();
+                thread.setName("FeatherMorph Profile Executor #" + threadId);
 
                 thread.setUncaughtExceptionHandler((Thread t, Throwable error) ->
                 {