Upgrade from NSCA 2.5 -> 2.71 problems (deamon)

Hi all,

Im using a distributed Nagios setup, where the distributed server is processing results to the main nagios by send_nsca. Ive got like 400 hosts & 3000 checks.
2.5 is working pretty fine, and is processing all messages fast enough. Now, I compiled 2.7.1 and tried it out, but its processing the messages really slow (sent by the distributed nagios servers), and a queue is increasing.
Somebody has the same problem? I just compled the binary and replaced it with the old nsca 2.5.