Apache restarting issue

[Leooo]

Hello,
I'm using Plesk 9.5.4
I can't make the update to 10.X for now (hosting few thousands websites on my server).
When I make domain modification or creation (whether directly on Plesk or through the command line utility) and Apache needs to restart :

- It restarts immediatly and dont wait restart_apache_interval
- It takes a while (up to 2 minutes) to restart.

It would be wonderfull if you could provide me a fix not requiring upgrade to 10.X .

Thanks,

Leo