SpigotCore_Main/src/de/steamwar/core/ProtocolWrapper.java

@@ -45,6 +45,9 @@ public interface ProtocolWrapper {
     Object playerInfoPacketConstructor(PlayerInfoAction action, GameProfile profile, GameMode mode);
 
     default void initTPSWarp(LongSupplier longSupplier) {
+        if (Core.getVersion() > 19) return;
+        Class systemUtils = Reflection.getClass("{nms}.SystemUtils");
+        Reflection.getField(systemUtils, LongSupplier.class, 0).set(systemUtils, longSupplier);
     }
 
     enum PlayerInfoAction {

SpigotCore_Main/src/de/steamwar/core/TPSWarpUtils.java

@@ -35,13 +35,7 @@ public class TPSWarpUtils {
     private static BukkitTask bukkitTask = null;
 
     static {
-        if (Core.getVersion() <= 18) {
-            Class clazz = Reflection.getClass("{nms}.SystemUtils");
-            Reflection.FieldAccessor fieldAccessor = Reflection.getField(clazz, LongSupplier.class, 0);
-            fieldAccessor.set(clazz, (LongSupplier) () -> System.nanoTime() + nanoDOffset);
-        } else {
-            ProtocolWrapper.impl.initTPSWarp(() -> nanoDOffset);
-        }
+        ProtocolWrapper.impl.initTPSWarp(() -> nanoDOffset);
     }
 
     public static void warp(double tps) {