diff --git a/build.gradle b/build.gradle
index 0ac560c982..63cf126d57 100644
--- a/build.gradle
+++ b/build.gradle
@@ -27,7 +27,7 @@ allprojects {
         gdxVersion = '1.9.8'
         roboVMVersion = '2.3.0'
         aiVersion = '1.8.1'
-        uCoreVersion = '7673041e62'
+        uCoreVersion = '05f51b183e'
 
         getVersionString = {
             String buildVersion = getBuildVersion()
diff --git a/core/src/io/anuke/mindustry/core/NetClient.java b/core/src/io/anuke/mindustry/core/NetClient.java
index 3b2110156b..5b820adf88 100644
--- a/core/src/io/anuke/mindustry/core/NetClient.java
+++ b/core/src/io/anuke/mindustry/core/NetClient.java
@@ -1,5 +1,6 @@
 package io.anuke.mindustry.core;
 
+import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.utils.Base64Coder;
 import com.badlogic.gdx.utils.IntSet;
@@ -175,7 +176,7 @@ public class NetClient extends Module {
         ui.loadfrag.hide();
         ui.join.hide();
         Net.setClientLoaded(true);
-        Call.connectConfirm();
+        Gdx.app.postRunnable(Call::connectConfirm);
         Timers.runTask(40f, Platform.instance::updateRPC);
     }
 
diff --git a/core/src/io/anuke/mindustry/core/ThreadHandler.java b/core/src/io/anuke/mindustry/core/ThreadHandler.java
index e87203a1a9..c90a32131c 100644
--- a/core/src/io/anuke/mindustry/core/ThreadHandler.java
+++ b/core/src/io/anuke/mindustry/core/ThreadHandler.java
@@ -1,7 +1,7 @@
 package io.anuke.mindustry.core;
 
 import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.utils.Array;
+import com.badlogic.gdx.utils.Queue;
 import com.badlogic.gdx.utils.TimeUtils;
 import io.anuke.ucore.core.Timers;
 import io.anuke.ucore.util.Log;
@@ -10,7 +10,7 @@ import static io.anuke.mindustry.Vars.control;
 import static io.anuke.mindustry.Vars.logic;
 
 public class ThreadHandler {
-    private final Array<Runnable> toRun = new Array<>();
+    private final Queue<Runnable> toRun = new Queue<>();
     private final ThreadProvider impl;
     private float delta = 1f;
     private float smoothDelta = 1f;
@@ -33,7 +33,7 @@ public class ThreadHandler {
     public void run(Runnable r){
         if(enabled) {
             synchronized (toRun) {
-                toRun.add(r);
+                toRun.addLast(r);
             }
         }else{
             r.run();
@@ -51,7 +51,7 @@ public class ThreadHandler {
     public void runDelay(Runnable r){
         if(enabled) {
             synchronized (toRun) {
-                toRun.add(r);
+                toRun.addLast(r);
             }
         }else{
             Gdx.app.postRunnable(r);
@@ -103,7 +103,7 @@ public class ThreadHandler {
     }
 
     public boolean doInterpolate(){
-        return enabled && Math.abs(Gdx.graphics.getFramesPerSecond() - getTPS()) > 15;
+        return enabled && Gdx.graphics.getFramesPerSecond() - getTPS() > 20 && getTPS() < 30;
     }
 
     public boolean isOnThread(){
@@ -119,13 +119,12 @@ public class ThreadHandler {
                     Runnable r;
                     synchronized (toRun){
                         if(toRun.size > 0){
-                            r = toRun.pop();
+                            r = toRun.removeFirst();
                         }else{
-                            r = null;
+                            break;
                         }
                     }
 
-                    if(r == null) break;
                     r.run();
                 }
 
diff --git a/core/src/io/anuke/mindustry/entities/Player.java b/core/src/io/anuke/mindustry/entities/Player.java
index 2775aa3438..064377e7d3 100644
--- a/core/src/io/anuke/mindustry/entities/Player.java
+++ b/core/src/io/anuke/mindustry/entities/Player.java
@@ -542,7 +542,7 @@ public class Player extends Unit implements BuilderTrait, CarryTrait, ShooterTra
 		pointerY = vec.y;
 		updateShooting();
 
-		movement.limit(speed);
+		movement.limit(speed * Timers.delta());
 
 		if(getCarrier() == null){
 			velocity.add(movement);
@@ -751,13 +751,12 @@ public class Player extends Unit implements BuilderTrait, CarryTrait, ShooterTra
 	public void write(DataOutput buffer) throws IOException {
 		super.writeSave(buffer, !isLocal);
 		buffer.writeUTF(name); //TODO writing strings is very inefficient
-		buffer.writeBoolean(isAdmin);
+		buffer.writeByte(Bits.toByte(isAdmin) | (Bits.toByte(dead) << 1) | (Bits.toByte(isBoosting) << 2));
 		buffer.writeInt(Color.rgba8888(color));
-		buffer.writeBoolean(dead);
 		buffer.writeByte(mech.id);
-		buffer.writeBoolean(isBoosting);
 		buffer.writeInt(mining == null ? -1 : mining.packedPosition());
 		buffer.writeInt(spawner);
+		buffer.writeShort((short)(baseRotation * 2));
 
 		writeBuilding(buffer);
 	}
@@ -767,17 +766,19 @@ public class Player extends Unit implements BuilderTrait, CarryTrait, ShooterTra
 		float lastx = x, lasty = y, lastrot = rotation;
 		super.readSave(buffer);
 		name = buffer.readUTF();
-		isAdmin = buffer.readBoolean();
+		byte bools = buffer.readByte();
+		isAdmin = (bools & 1) != 0;
+		dead = (bools & 2) != 0;
+		boolean boosting = (bools & 4) != 0;
 		color.set(buffer.readInt());
-		dead = buffer.readBoolean();
 		mech = Upgrade.getByID(buffer.readByte());
-		boolean boosting = buffer.readBoolean();
 		int mine = buffer.readInt();
 		spawner = buffer.readInt();
+		float baseRotation = buffer.readShort()/2f;
 
 		readBuilding(buffer, !isLocal);
 
-		interpolator.read(lastx, lasty, x, y, time, rotation);
+		interpolator.read(lastx, lasty, x, y, time, rotation, baseRotation);
 		rotation = lastrot;
 
 		if(isLocal){
diff --git a/core/src/io/anuke/mindustry/net/Interpolator.java b/core/src/io/anuke/mindustry/net/Interpolator.java
index 1c0d4735d6..ed983bbbf0 100644
--- a/core/src/io/anuke/mindustry/net/Interpolator.java
+++ b/core/src/io/anuke/mindustry/net/Interpolator.java
@@ -38,11 +38,12 @@ public class Interpolator {
 
     public void update(){
 
+        /*
         if(pos.dst(target) > 128){
             pos.set(target);
             lastUpdated = 0;
             updateSpacing = 16;
-        }
+        }*/
 
         if(lastUpdated != 0 && updateSpacing != 0){
             float timeSinceUpdate = TimeUtils.timeSinceMillis(lastUpdated);