delay in trap management

Hi,
I´m using net-snmp5.5 (actually snmptrapd) to receive the traps of all the devices of the network.To manage all this traps, i´m working with nagios and their passive services so i configured snmptrapdto work with snmptt.
Everything works fine with one exception: when receiving simultaneous traps, snmptrapd is not capable of manage them simultaneously and there is a delay of 40sg between them. I have to say that no trap is lost, but, if there is a lot of simultaneous trap, this delay in the notification makes imposible to do a temporal study of a problem.   
i can see in the debug of snmptrapd and snmptt that this delay is related with snmptrapd, and snmptt add no extra-delay:
- Is it normal such a big delay between the manage of each trap ???- Is there a possible configuration change to minimize this delay ???
In the attached files you could see an example of the problem and the configuration files of snmptrapd:- screenshot of the packets captured with wireshark where it´s possible to see the simultaneous traps- snmptrapd.log (log file related with the previous screenshot)- snmptrapd.conf- snmptrapd (/etc/init.d/)
Thank you very much

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traphandle default /usr/sbin/snmptthandler 
disableAuthorization yes 
donotlogtraps  yes