diff --git a/GraphicsAPI/OpenGLApi.cs b/GraphicsAPI/OpenGLApi.cs
index 9c3da6de0..72e124494 100644
--- a/GraphicsAPI/OpenGLApi.cs
+++ b/GraphicsAPI/OpenGLApi.cs
@@ -89,9 +89,9 @@ namespace ClassicalSharp.GraphicsAPI {
 			set { ToggleCap( EnableCap.Fog, value ); }
 		}
 		
-		public override void SetFogColour( FastColour col ) {
-			float[] colRGBA = { col.R / 255f, col.G / 255f, col.B / 255f, col.A / 255f };
-			GL.Fog( FogParameter.FogColor, colRGBA );
+		public unsafe override void SetFogColour( FastColour col ) {
+			Vector4 colRGBA = new Vector4( col.R / 255f, col.G / 255f, col.B / 255f, col.A / 255f );
+			GL.Fog( FogParameter.FogColor, &colRGBA.X );
 		}
 		
 		public override void SetFogDensity( float value ) {
diff --git a/Network/FastNetReader.cs b/Network/FastNetReader.cs
index aa3c9015e..33e3690e6 100644
--- a/Network/FastNetReader.cs
+++ b/Network/FastNetReader.cs
@@ -62,18 +62,20 @@ namespace ClassicalSharp {
 		/// <summary> Reads a string, then converts control characters into the
 		/// unicode values of their equivalent code page 437 graphical representations. </summary>
 		public string ReadTextString() {
-			byte[] data = ReadBytes( 64 );
-			return GetTextString( data ).TrimEnd( '\0', ' ' ); // servers can use either null or spaces for padding.
+			string value = GetTextString( buffer ).TrimEnd( '\0', ' ' ); // servers can use either null or spaces for padding.
+			Remove( 64 );
+			return value;
 		}
 		
 		public string ReadString() {
-			byte[] data = ReadBytes( 64 );
-			return GetAsciiString( data ).TrimEnd( '\0', ' ' );
+			string value = GetAsciiString( buffer ).TrimEnd( '\0', ' ' );
+			Remove( 64 );
+			return value;
 		}
 		
+		static char[] characters = new char[64];
 		static string GetAsciiString( byte[] data ) {
-			char[] characters = new char[data.Length];
-			for( int i = 0; i < data.Length; i++ ) {
+			for( int i = 0; i < 64; i++ ) {
 				byte code = data[i];
 				characters[i] = code >= 0x80 ? '?' : (char)code;
 			}
@@ -82,8 +84,7 @@ namespace ClassicalSharp {
 		
 		static string GetTextString( byte[] data ) {
 			// code page 437 indices --> actual unicode characters
-			char[] characters = new char[data.Length];
-			for( int i = 0; i < data.Length; i++ ) {
+			for( int i = 0; i < 64; i++ ) {
 				byte code = data[i];
 				if( code < 0x20 ) { // general control characters
 					characters[i] = controlCharReplacements[code];
diff --git a/Network/FixedBufferStream.cs b/Network/FixedBufferStream.cs
index 716dd3aa4..cf294b3f1 100644
--- a/Network/FixedBufferStream.cs
+++ b/Network/FixedBufferStream.cs
@@ -5,7 +5,7 @@ namespace ClassicalSharp {
 	
 	internal class FixedBufferStream : Stream {
 		
-		private byte[] _buffer;
+		public byte[] _buffer;
 		private int _position;
 		private int _length;
 		
diff --git a/Network/NetworkProcessor.cs b/Network/NetworkProcessor.cs
index 2a77c9ac8..6c135eecc 100644
--- a/Network/NetworkProcessor.cs
+++ b/Network/NetworkProcessor.cs
@@ -329,14 +329,12 @@ namespace ClassicalSharp {
 				case PacketId.LevelDataChunk:
 					{
 						int usedLength = reader.ReadInt16();
-						byte[] data = reader.ReadBytes( 1024 );
-						byte progress = reader.ReadUInt8();
-						Window.RaiseMapLoading( progress );
-						
 						gzippedMap.Position = 0;
 						gzippedMap.SetLength( usedLength );
-						gzippedMap.Write( data, 0, usedLength );
+						Buffer.BlockCopy( reader.buffer, 0, gzippedMap._buffer, 0, usedLength );
+						reader.Remove( 1024 );
 						gzippedMap.Position = 0;
+						
 						if( mapSizeIndex < 4 ) {
 							mapSizeIndex += gzipStream.Read( mapSize, 0, 4 - mapSizeIndex );
 						}
@@ -348,6 +346,9 @@ namespace ClassicalSharp {
 							}
 							mapIndex += gzipStream.Read( map, mapIndex, map.Length - mapIndex );
 						}
+						
+						byte progress = reader.ReadUInt8();
+						Window.RaiseMapLoading( progress );
 					} break;
 					
 				case PacketId.LevelFinalise: