Indy 9 performs slower than Indy 8

Hello everybody, can someone help with this strange issue?

I was developing an application using Indy 8's TIdHTTP and TIdHTTPServer, then I installed Indy 9.0.11 due to the need in ReadTimeout. But after the change it really seems like data exchange between two machines in the LAN has became slower, now more time is needed even to send a short HTTP request to the neighbor PC.

Is there some property I need to set to speed it up?

Thank you!