diff --git a/bench/script.js b/bench/script.js
new file mode 100644
index 00000000..444082d1
--- /dev/null
+++ b/bench/script.js
@@ -0,0 +1,43 @@
+'use strict';
+
+var BN = require('bn.js');
+var bcoin = require('../').set('main');
+var constants = bcoin.constants;
+var utils = bcoin.utils;
+var assert = require('assert');
+var scriptTypes = constants.scriptTypes;
+var opcodes = constants.opcodes;
+var bench = require('./bench');
+var fs = require('fs');
+var Script = bcoin.script;
+
+bcoin.cache();
+
+Script.prototype.fromPubkeyhashOld = function fromScripthash(hash) {
+  assert(Buffer.isBuffer(hash) && hash.length === 20);
+  this.push(opcodes.OP_DUP);
+  this.push(opcodes.OP_HASH160);
+  this.push(hash);
+  this.push(opcodes.OP_EQUALVERIFY);
+  this.push(opcodes.OP_CHECKSIG);
+  this.compile();
+  return this;
+};
+
+Script.fromPubkeyhashOld = function fromScripthash(hash) {
+  return new Script().fromPubkeyhashOld(hash);
+};
+
+var hashes = [];
+for (var i = 0; i < 100000; i++)
+  hashes.push(bcoin.crypto.randomBytes(20));
+
+var end = bench('old');
+for (var i = 0; i < hashes.length; i++)
+  Script.fromPubkeyhashOld(hashes[i]);
+end(i);
+
+var end = bench('hash');
+for (var i = 0; i < hashes.length; i++)
+  Script.fromPubkeyhash(hashes[i]);
+end(i);
diff --git a/lib/script/script.js b/lib/script/script.js
index f91e1b41..a5729872 100644
--- a/lib/script/script.js
+++ b/lib/script/script.js
@@ -1611,12 +1611,23 @@ Script.fromPubkey = function fromPubkey(key) {
 
 Script.prototype.fromPubkeyhash = function fromPubkeyhash(hash) {
   assert(Buffer.isBuffer(hash) && hash.length === 20);
-  this.push(opcodes.OP_DUP);
-  this.push(opcodes.OP_HASH160);
-  this.push(hash);
-  this.push(opcodes.OP_EQUALVERIFY);
-  this.push(opcodes.OP_CHECKSIG);
-  this.compile();
+
+  this.raw = new Buffer(25);
+  this.raw[0] = opcodes.OP_DUP;
+  this.raw[1] = opcodes.OP_HASH160;
+  this.raw[2] = 0x14;
+  hash.copy(this.raw, 3);
+  this.raw[23] = opcodes.OP_EQUALVERIFY;
+  this.raw[24] = opcodes.OP_CHECKSIG;
+
+  hash = this.raw.slice(3, 23);
+
+  this.code.push(new Opcode(opcodes.OP_DUP));
+  this.code.push(new Opcode(opcodes.OP_HASH160));
+  this.code.push(new Opcode(0x14, hash));
+  this.code.push(new Opcode(opcodes.OP_EQUALVERIFY));
+  this.code.push(new Opcode(opcodes.OP_CHECKSIG));
+
   return this;
 };
 
@@ -1682,10 +1693,19 @@ Script.fromMultisig = function fromMultisig(m, n, keys) {
 
 Script.prototype.fromScripthash = function fromScripthash(hash) {
   assert(Buffer.isBuffer(hash) && hash.length === 20);
-  this.push(opcodes.OP_HASH160);
-  this.push(hash);
-  this.push(opcodes.OP_EQUAL);
-  this.compile();
+
+  this.raw = new Buffer(23);
+  this.raw[0] = opcodes.OP_HASH160;
+  this.raw[1] = 0x14;
+  hash.copy(this.raw, 2);
+  this.raw[22] = opcodes.OP_EQUAL;
+
+  hash = this.raw.slice(2, 22);
+
+  this.code.push(new Opcode(opcodes.OP_HASH160));
+  this.code.push(new Opcode(0x14, hash));
+  this.code.push(new Opcode(opcodes.OP_EQUAL));
+
   return this;
 };