diff --git a/fulcrum.md b/fulcrum.md
index c8d5e96..d9c078a 100644
--- a/fulcrum.md
+++ b/fulcrum.md
@@ -87,18 +87,19 @@ datadir = /home/fulcrum/.fulcrum/db
 bitcoind = 127.0.0.1:8332
 rpcuser = raspibolt
 rpcpassword = ${PASSWORD_B}
-tcp = 0.0.0.0:50020
 
-#cert = /path/to/server-cert.pem
-#key = /path/to/server-key.pem
-
-# fast-sync failed on the RPi so keep it off
-# fast-sync = 4000
-# reduce load
-bitcoind_clients = 1
 # avoid 'bitcoind request timed out'
 bitcoind_timeout = 300
+# reduce load
+bitcoind_clients = 1
+worker_threads = 2
+db_max_open_files=500
+db_mem=1024
+fast-sync = 2048
 
+tcp = 0.0.0.0:50020
+#cert = /path/to/server-cert.pem
+#key = /path/to/server-key.pem
 " | sudo -u fulcrum tee /home/fulcrum/.fulcrum/fulcrum.conf
 ```
 * the ports 50020 and 50011 are used to not interfere with a possible Electrs or ElectrumX instance