diff --git a/plist-cil/BinaryPropertyListParser.cs b/plist-cil/BinaryPropertyListParser.cs
index ec7cd60..fca5cbc 100644
--- a/plist-cil/BinaryPropertyListParser.cs
+++ b/plist-cil/BinaryPropertyListParser.cs
@@ -44,6 +44,8 @@ namespace Claunia.PropertyList
     /// @author Natalia Portillo
     public class BinaryPropertyListParser
     {
+        private readonly static Encoding utf16BigEndian = Encoding.GetEncoding("UTF-16BE");
+
         /// <summary>
         /// Major version of the property list format
         /// </summary>
@@ -290,7 +292,7 @@ namespace Claunia.PropertyList
                     {
                         //ASCII String, each character is 1 byte
                         ReadLengthAndOffset(bytes, objInfo, offset, out int length, out int stroffset);
-                        return new NSString(bytes.Slice(offset + stroffset, length), "ASCII");
+                        return new NSString(bytes.Slice(offset + stroffset, length), Encoding.ASCII);
                     }
                 case 0x6:
                     {
@@ -300,7 +302,7 @@ namespace Claunia.PropertyList
                         //UTF-16 characters can have variable length, but the Core Foundation reference implementation
                         //assumes 2 byte characters, thus only covering the Basic Multilingual Plane
                         length *= 2;
-                        return new NSString(bytes.Slice(offset + stroffset, length), "UTF-16BE");
+                        return new NSString(bytes.Slice(offset + stroffset, length), utf16BigEndian);
                     }
                 case 0x7:
                     {
@@ -310,7 +312,7 @@ namespace Claunia.PropertyList
                         //UTF-8 characters can have variable length, so we need to calculate the byte length dynamically
                         //by reading the UTF-8 characters one by one
                         int length = CalculateUtf8StringLength(bytes, offset + strOffset, characters);
-                        return new NSString(bytes.Slice(offset + strOffset, length), "UTF-8");
+                        return new NSString(bytes.Slice(offset + strOffset, length), Encoding.UTF8);
                     }
                 case 0x8:
                     {
@@ -326,7 +328,7 @@ namespace Claunia.PropertyList
                         NSArray array = new NSArray(length);
                         for (int i = 0; i < length; i++)
                         {
-                            int objRef = (int)ParseUnsignedInt(bytes.Slice(offset + arrayOffset + i * objectRefSize,objectRefSize));
+                            int objRef = (int)ParseUnsignedInt(bytes.Slice(offset + arrayOffset + i * objectRefSize, objectRefSize));
                             array.Add(ParseObject(bytes, objRef));
                         }
                         return array;
diff --git a/plist-cil/NSString.cs b/plist-cil/NSString.cs
index 30b7b8f..fd5003d 100644
--- a/plist-cil/NSString.cs
+++ b/plist-cil/NSString.cs
@@ -43,12 +43,22 @@ namespace Claunia.PropertyList
         /// <param name="encoding">The encoding of the binary representation, the name of a supported charset.</param>
         /// <exception cref="ArgumentException">The encoding charset is invalid or not supported by the underlying platform.</exception>
         public NSString(ReadOnlySpan<byte> bytes, String encoding)
+            : this(bytes, Encoding.GetEncoding(encoding))
+        {
+        }
+
+        /// <summary>
+        /// Creates a NSString from its binary representation.
+        /// </summary>
+        /// <param name="bytes">The binary representation.</param>
+        /// <param name="encoding">The encoding of the binary representation.</param>
+        /// <exception cref="ArgumentException">The encoding charset is invalid or not supported by the underlying platform.</exception>
+        public NSString(ReadOnlySpan<byte> bytes, Encoding encoding)
         {
-            Encoding enc = Encoding.GetEncoding(encoding);
 #if NATIVE_SPAN
-            content = enc.GetString(bytes);
+            content = encoding.GetString(bytes);
 #else
-            content = enc.GetString(bytes.ToArray());
+            content = encoding.GetString(bytes.ToArray());
 #endif
         }