[Twisted-Python] Slow PB imports

Hi, i using the Perspective Broker and i have problems with the speed of importing the modules. It takes 15 - 17 seconds for importing the Reactor and the PBServerFactory (or other pb imports). If i import the reactor or the pb imports alone it takes in avg. 2-3 seconds. def ImportIt(): from twisted.internet import reactor from twisted.spread.pb import PBServerFactory import timeit t = timeit.Timer(setup='from __main__ import ImportIt', stmt='ImportIt()') print t.timeit() How can i improve this? I running win7 32bit SP1 on a 2,93 Ghz Core 2 Duo with python 2.7.1 and twisted 11.0 cheers Marcel