Nope, wouldn't help, flserver.exe itself is not written for multithreading, which is a shame as it only uses 1 core/cpu leaving the other ones for supporting processes. We use a patch by wodka that forces flhook to run in separate thread leaving the other CPU solely for flserver. Unless source codes are released there is nothing to do about it, and I doubt that even if they were released no one would be able dedicate massive amounts of his/her free time to rewrite it...
