@bangui91
first go into the bios and disable hyperthreading.
secondly, list your network adapters. are they all intel or do you have realtek?
Everyone hates realtek because for the longest time, BSD was shipped with broken drivers.. pfsense version 2.5 finally included working drivers for realteks, however unlike intels that just 'install and work out of the box', you have to direct pfsense to use the new realtek drivers. i've seen the commands, it's very simple. just have to search for the instructions on what to do.. again, it's very simple and as a noob myself, i wouldn't be concerned.
third, you should list the packages you have installed for the seasoned vets to go through.. someone here will know