diff --git a/lib/node/config.js b/lib/node/config.js
index 609b5feb..8851c79f 100644
--- a/lib/node/config.js
+++ b/lib/node/config.js
@@ -234,8 +234,8 @@ config.parseData = function parseData(data, prefix, dirname) {
   if (options.fast) {
     options.headers = true;
     options.useCheckpoints = true;
-    options.cacheSize = 300 << 20;
-    options.coinCache = 100 << 20;
+    options.cacheSize = 200 << 20;
+    options.coinCache = 65 << 20;
   }
 
   return options;