First of all it is advisable that the user checks that if it is the software that is causing the issue for that the user can get the firewall disabled and can then check the speed generally the speed issue has nothing to do with the security software but still if the user feels so then he or she can get upgraded to the Bullguard internet security or to the BullGuard premium version as these two versions offer the users with the tune-up facility which further helps them in increasing the speed of the system