diff --git a/BauSystem_12/src/de/steamwar/bausystem/commands/TPSLimit_12.java b/BauSystem_12/src/de/steamwar/bausystem/commands/TPSLimit_12.java
index d32d4cb..b2ebadc 100644
--- a/BauSystem_12/src/de/steamwar/bausystem/commands/TPSLimit_12.java
+++ b/BauSystem_12/src/de/steamwar/bausystem/commands/TPSLimit_12.java
@@ -24,50 +24,32 @@ import org.bukkit.Bukkit;
 import org.bukkit.World;
 import org.bukkit.craftbukkit.v1_12_R1.entity.CraftEntity;
 import org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer;
+import org.bukkit.entity.FallingBlock;
 import org.bukkit.entity.TNTPrimed;
 
+import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 class TPSLimit_12 {
 
-    private static Set<PacketPlayOutEntityVelocity> velocityPackets = new HashSet<>();
+    private static List<Packet<?>> packets = new ArrayList<>();
 
-    static void createVelocityPacketCache(World world) {
-        velocityPackets.clear();
-        world.getEntitiesByClasses(TNTPrimed.class).forEach(entity -> {
-            velocityPackets.add(new PacketPlayOutEntityVelocity(entity.getEntityId(), 0, 0, 0));
+    static void createTickCache(World world) {
+        packets.clear();
+        world.getEntitiesByClasses(TNTPrimed.class, FallingBlock.class).forEach(entity -> {
+            packets.add(new PacketPlayOutEntityVelocity(entity.getEntityId(), 0, 0, 0));
+            packets.add(new PacketPlayOutEntityTeleport(((CraftEntity) entity).getHandle()));
+
+            if (entity instanceof TNTPrimed) {
+                net.minecraft.server.v1_12_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
+                packets.add(new PacketPlayOutEntityMetadata(serverEntity.getId(), serverEntity.getDataWatcher(), true));
+            }
         });
     }
 
-    static void sendVelocityPackets() {
-        sendPacketsToPlayer(velocityPackets);
-    }
-
-    static void sendTntMetaData(World world) {
-        Set<Packet<?>> packets = new HashSet<>();
-
-        world.getEntitiesByClasses(TNTPrimed.class).forEach(entity -> {
-            net.minecraft.server.v1_12_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
-
-            packets.add(new PacketPlayOutEntityMetadata(serverEntity.getId(), serverEntity.getDataWatcher(), true));
-        });
-
-        sendPacketsToPlayer(packets);
-    }
-
-    static void sendTntData(World world) {
-        Set<Packet<?>> packets = new HashSet<>();
-
-        world.getEntitiesByClasses(TNTPrimed.class).forEach(entity -> {
-            net.minecraft.server.v1_12_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
-            packets.add(new PacketPlayOutEntityTeleport(serverEntity));
-        });
-
-        sendPacketsToPlayer(packets);
-    }
-
-    static void sendPacketsToPlayer(Set<? extends Packet<?>> packets) {
+    static void sendTickPackets() {
         Bukkit.getOnlinePlayers().forEach(player -> {
             PlayerConnection connection = ((CraftPlayer)player).getHandle().playerConnection;
             for (Packet<?> p : packets) {
diff --git a/BauSystem_15/src/de/steamwar/bausystem/commands/TPSLimit_15.java b/BauSystem_15/src/de/steamwar/bausystem/commands/TPSLimit_15.java
index cb32794..a1621dc 100644
--- a/BauSystem_15/src/de/steamwar/bausystem/commands/TPSLimit_15.java
+++ b/BauSystem_15/src/de/steamwar/bausystem/commands/TPSLimit_15.java
@@ -24,51 +24,32 @@ import org.bukkit.Bukkit;
 import org.bukkit.World;
 import org.bukkit.craftbukkit.v1_15_R1.entity.CraftEntity;
 import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.entity.FallingBlock;
 import org.bukkit.entity.TNTPrimed;
 
-import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Set;
 
 class TPSLimit_15 {
 
-    private static Set<PacketPlayOutEntityVelocity> velocityPackets = new HashSet<>();
+    private static List<Packet<?>> packets = new ArrayList<>();
     private static final Vec3D noMotion = new Vec3D(0, 0, 0);
 
-    static void createVelocityPacketCache(World world) {
-        velocityPackets.clear();
-        world.getEntitiesByClasses(TNTPrimed.class).forEach(entity -> {
-            velocityPackets.add(new PacketPlayOutEntityVelocity(entity.getEntityId(), noMotion));
+    static void createTickCache(World world) {
+        packets.clear();
+        world.getEntitiesByClasses(TNTPrimed.class, FallingBlock.class).forEach(entity -> {
+            packets.add(new PacketPlayOutEntityVelocity(entity.getEntityId(), noMotion));
+            packets.add(new PacketPlayOutEntityTeleport(((CraftEntity) entity).getHandle()));
+
+            if (entity instanceof TNTPrimed) {
+                net.minecraft.server.v1_15_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
+                packets.add(new PacketPlayOutEntityMetadata(serverEntity.getId(), serverEntity.getDataWatcher(), true));
+            }
         });
     }
 
-    static void sendVelocityPackets() {
-        sendPacketsToPlayer(velocityPackets);
-    }
-
-    static void sendTntMetaData(World world) {
-        Set<Packet<?>> packets = new HashSet<>();
-
-        world.getEntitiesByClasses(TNTPrimed.class).forEach(entity -> {
-            net.minecraft.server.v1_15_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
-
-            packets.add(new PacketPlayOutEntityMetadata(serverEntity.getId(), serverEntity.getDataWatcher(), true));
-        });
-
-        sendPacketsToPlayer(packets);
-    }
-
-    static void sendTntData(World world) {
-        Set<Packet<?>> packets = new HashSet<>();
-
-        world.getEntitiesByClasses(TNTPrimed.class).forEach(entity -> {
-            net.minecraft.server.v1_15_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
-            packets.add(new PacketPlayOutEntityTeleport(serverEntity));
-        });
-
-        sendPacketsToPlayer(packets);
-    }
-
-    static void sendPacketsToPlayer(Set<? extends Packet<?>> packets) {
+    static void sendTickPackets() {
         Bukkit.getOnlinePlayers().forEach(player -> {
             PlayerConnection connection = ((CraftPlayer)player).getHandle().playerConnection;
             for (Packet<?> p : packets) {
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/commands/CommandTPSLimiter.java b/BauSystem_Main/src/de/steamwar/bausystem/commands/CommandTPSLimiter.java
index 94df329..051d4f7 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/commands/CommandTPSLimiter.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/commands/CommandTPSLimiter.java
@@ -22,7 +22,7 @@ package de.steamwar.bausystem.commands;
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
 import de.steamwar.bausystem.world.Welt;
-import de.steamwar.core.Core;
+import de.steamwar.core.VersionedRunnable;
 import net.md_5.bungee.api.ChatMessageType;
 import net.md_5.bungee.api.chat.TextComponent;
 import org.bukkit.Bukkit;
@@ -35,7 +35,7 @@ import org.bukkit.scheduler.BukkitTask;
 
 public class CommandTPSLimiter implements CommandExecutor {
 
-    private static int currentTPSLimit = 20;
+    private static double currentTPSLimit = 20;
     private static World world = Bukkit.getWorlds().get(0);
     private long lastTime = System.nanoTime();
     private long currentTime = System.nanoTime();
@@ -71,12 +71,12 @@ public class CommandTPSLimiter implements CommandExecutor {
         }
 
         try {
-            int tpsLimitInt = Integer.parseInt(tpsLimit);
-            if (tpsLimitInt < 1 || tpsLimitInt > 20) {
+            double tpsLimitDouble = Double.parseDouble(tpsLimit.replace(',', '.'));
+            if (tpsLimitDouble < 0.5 || tpsLimitDouble > 20) {
                 sendInvalidArgumentMessage(player);
                 return false;
             }
-            currentTPSLimit = tpsLimitInt;
+            currentTPSLimit = tpsLimitDouble;
             sendNewTPSLimitMessage();
             tpsLimiter();
         } catch (NumberFormatException e) {
@@ -91,7 +91,7 @@ public class CommandTPSLimiter implements CommandExecutor {
     }
 
     private void sendInvalidArgumentMessage(Player player) {
-        player.sendMessage(BauSystem.PREFIX + "§cNur Zahlen zwischen 1 und 20, und 'default' erlaubt.");
+        player.sendMessage(BauSystem.PREFIX + "§cNur Zahlen zwischen 0,5 und 20, und 'default' erlaubt.");
     }
 
     private void tpsLimiter() {
@@ -102,13 +102,12 @@ public class CommandTPSLimiter implements CommandExecutor {
         } else {
             if (tpsLimiter != null) return;
             tpsLimiter = Bukkit.getScheduler().runTaskTimer(BauSystem.getPlugin(), () -> {
-                sendTntMetaData();
-
-                createVelocityData();
+                VersionedRunnable.call(new VersionedRunnable(() -> TPSLimit_12.createTickCache(world), 8),
+                        new VersionedRunnable(() -> TPSLimit_15.createTickCache(world), 14));
                 for (int i = 0; i < (20 / currentTPSLimit); i++) {
                     sleepUntilNextTick();
-                    sendTntData();
-                    sendVelocityData();
+                    VersionedRunnable.call(new VersionedRunnable(TPSLimit_12::sendTickPackets, 8),
+                            new VersionedRunnable(TPSLimit_15::sendTickPackets, 14));
                 }
             }, 0, 1);
         }
@@ -133,47 +132,7 @@ public class CommandTPSLimiter implements CommandExecutor {
         }
     }
 
-    private void createVelocityData() {
-        switch (Core.getVersion()) {
-            case 15:
-                TPSLimit_15.createVelocityPacketCache(world);
-                break;
-            default:
-                TPSLimit_12.createVelocityPacketCache(world);
-        }
-    }
-
-    private void sendVelocityData() {
-        switch (Core.getVersion()) {
-            case 15:
-                TPSLimit_15.sendVelocityPackets();
-                break;
-            default:
-                TPSLimit_12.sendVelocityPackets();
-        }
-    }
-
-    private void sendTntMetaData() {
-        switch (Core.getVersion()) {
-            case 15:
-                TPSLimit_15.sendTntMetaData(world);
-                break;
-            default:
-                TPSLimit_12.sendTntMetaData(world);
-        }
-    }
-
-    private void sendTntData() {
-        switch (Core.getVersion()) {
-            case 15:
-                TPSLimit_15.sendTntData(world);
-                break;
-            default:
-                TPSLimit_12.sendTntData(world);
-        }
-    }
-
-    public static int getCurrentTPSLimit() {
+    public static double getCurrentTPSLimit() {
         return currentTPSLimit;
     }