[TYPO3-project-seminars] Seminar Manager 0.6.1 performance problems

[Tomas]

Hi there,

I made an update to the seminar manager 0.6.1 yesterday.
Since then I'm experiencing performance problems in the typo3 4.2 
back-end (on Apache 2, PHP 5.2.6 ,MySQL 4.1.10a, eAccelerator)

Especially with the back-end module "Seminars" it takes about 60-70 
seconds for getting a list of about 100 participants!

It wasn't so slow with the old version!
The database analyser in the install tool doesn't show any problems.
I've cleared all caches.

Do you have any idea what's the matter or what to look for?

I'd be very thankful for any hints!
Regards,

Tomas