diff --git a/lib/bcoin/blockdb.js b/lib/bcoin/blockdb.js
index 79d93917..d8dafbe8 100644
--- a/lib/bcoin/blockdb.js
+++ b/lib/bcoin/blockdb.js
@@ -39,10 +39,16 @@ function BlockDB(options) {
 
   this.data = new BlockData();
 
-  this.index = levelup(this.file, {
+  this.index = new levelup(this.file, {
     keyEncoding: 'ascii',
     valueEncoding: 'binary',
+    createIfMissing: true,
+    errorIfExists: false,
+    compression: true,
     cacheSize: 16 * 1024 * 1024,
+    // writeBufferSize: 4 * 1024 * 1024,
+    // blockSize: 4 * 1024,
+    maxOpenFiles: 8192,
     db: bcoin.isBrowser
       ? require('memdown')
       : require('level' + 'down')
@@ -74,7 +80,6 @@ BlockDB.prototype.parseOffset = function parseOffset(data) {
 
 BlockDB.prototype.saveBlock = function saveBlock(block, callback) {
   var self = this;
-  var batch = this.index.batch();
 
   this.data.saveAsync(block._raw, function(err, data) {
     var batch, blockOffset;
@@ -537,8 +542,10 @@ BlockDB.prototype._getTXByAddress = function _getTXByAddress(address, callback)
   });
 
   stream.on('data', function(data) {
-    var parts = data.key.split('/').slice(3);
-    var hash = parts[0];
+    // var parts = data.key.split('/').slice(3);
+    // var hash = parts[0];
+    // Could store block hash in key
+    // var blockHash = parts[1];
     var record = self.parseOffset(data.value);
 
     pending++;
diff --git a/lib/bcoin/utils.js b/lib/bcoin/utils.js
index df6b369d..e64574f6 100644
--- a/lib/bcoin/utils.js
+++ b/lib/bcoin/utils.js
@@ -533,7 +533,7 @@ utils.isSatoshi = function isSatoshi(val) {
   if (utils.isHex(val))
     return new bn(val, 'hex');
   if (Buffer.isBuffer(val))
-    return new bn(utils.toArray(val));
+    return new bn(val);
   if (Array.isArray(val))
     return new bn(val);
   return false;
@@ -1003,14 +1003,14 @@ utils.readU32BE = function readU32BE(arr, off) {
 utils.readU64 = function readU64(arr, off) {
   var num;
   off = off >>> 0;
-  num = utils.toArray(arr.slice(off, off + 8));
+  num = arr.slice(off, off + 8);
   return new bn(num, 'le');
 };
 
 utils.readU64BE = function readU64BE(arr, off) {
   var num;
   off = off >>> 0;
-  num = utils.toArray(arr.slice(off, off + 8));
+  num = arr.slice(off, off + 8);
   return new bn(num, 'be');
 };
 
@@ -1058,7 +1058,7 @@ utils.read64 = function read64(arr, off) {
 
   off = off >>> 0;
 
-  num = utils.toArray(arr.slice(off, off + 8));
+  num = arr.slice(off, off + 8);
 
   // If we are signed, do (~num + 1) to get
   // the positive counterpart and set bn's
@@ -1077,7 +1077,7 @@ utils.read64BE = function read64BE(arr, off) {
 
   off = off >>> 0;
 
-  num = utils.toArray(arr.slice(off, off + 8));
+  num = arr.slice(off, off + 8);
 
   // If we are signed, do (~num + 1) to get
   // the positive counterpart and set bn's