I was running bitcoind 0.3.x and 0.4.x on a freebsd virtual server and it ran pretty well.  It was compiled from source from the freebsd ports tree.   I now am trying to use bitcoind 64bit binary downloaded from bitcoin.org on a CentOS 6 virtual server, and it seems to use a lot more memory and cpu than the older version I was using.  Also, "bitcoind getinfo"  will lag over 30 seconds sometimes before responding. When it finally responds, subsequent getinfo calls return quickly, but if you wait a while it hangs again.

Also my app which communicates to bitcoind via rpc to make new payment addresses and such will also have very slow response at times, and if the delay goes over 30 seconds my load balancer gives up and it screws up the transaction (unfortunately I can't increase the timeout on the load balancer)

should I try getting the latest bitcoind compiled from source to see if the performance is better than the provided binary?  Is there some other trick I'm missing regarding why this is happening?