I recently installed Zone Alarm (Free version) on my Surfing PC laptop(Non trading PC). It seems to have slowed down my internet surfing dramatically. Questions:? I am unsure about what to allow and what to deny. What do I do here? Does the system speed improve over time as the ZA or any other software firewall learns to screen programs more efficiently? What can I do to improve surfing speeds while trying to run a software firewall?