How to force an event trace session to clear data more often?

I have a driver that writes a lot of trace logs using WPP.

I created an AutoLogger key record to write events to the .etl file.

The registration session started successfully and the file was created, but it seems that the data is deployed to the disk once for a long time. Is it possible to do the preparation data more often or even in real time?

I tried playing with "Flush Timer", but based on what is written on MSDN and what effect it received, this is not what I am looking for.

Thank.