Bitdefender Firewall

I have been looking at some of the setting in my Bitdefender Internet security 2015 settings as I'm not sure if it;s working correctly.


First problems. - I'm running Windows 7 64bit with Google Chrome and finding Internet pages are starting to slow down in terms of their loading speeds.


Second problem - When I check the Bitdefender firewall settings and try to change anything I get the following error message


Firewall Error - "Bitdefender Firewall Error: Failed to communicate with the Bitdefender Security Service!".


Is it possible I have some corrupted files relating to my installation of my copy of Bitdefender or is their something else I need to double check