reduce highWaterMark on wallet export stream

Author: gabegattis

lib/services/wallet-api/index.js

@@ -714,7 +714,7 @@ WalletService.prototype._endpointGetTransactions = function() {
         };
 
         var missingTxidCount = 0;
-        var txStream = new Transform({ objectMode: true, highWaterMark: 1000000 });
+        var txStream = new Transform({ objectMode: true, highWaterMark: 100 });
         //txids are sent in and the actual tx's are found here
         txStream._transform = function(chunk, enc, callback) {
 
@@ -1399,4 +1399,3 @@ WalletService.prototype.getRoutePrefix = function() {
 };
 
 module.exports = WalletService;
-