this helps alot.shutting down windows search index and shutdown user account control ,then goto a great site named bleeping computer and download rkkill and adwcleaner,always run rkkill first then adwcleaner /clean any adware it finds and it will make you reboot,after that you will notice huge performance difference -found a pup I didnt know I had.now Firefox is blazingly fast...gl
also my ati card has a power saver option called chill in amd settings /gameing/global settings and since my power bill is crazy I put this on and noticed much smoother game play and its supposed to save alot of power at least 20% less--