[rules-users] Drools response time

Dear all, I need to develop an Expert System for a new project and I want to use Drools, butI have some restrictions. The most important restriction: response time of the application must be less than one second. Also, the application access to one data base to retrieve some information and send it to the expert systetm. With this information, can anyone tell me, approximately, the response time of Drools? It is very important to can use Drools in this project. And we like very much to use it. (We use in other projects without these restrictions). Thank in advance. Best regards, Jesús.