Here are some fixes for FPS drops that have worked for many other users:
1. Disable origin in game as it's causes lag and FPS problems. To turn off Origin in game log into Origin, in the upper left hand corner click on the word "Origin" in the menu, and then click on "Application Settings". Next go to the "Origin in game" tab and uncheck the "enable Origin in game" box.
2. If you have the Raptr game tracking program running kill the process before playing BF4, this solved my random FPS drops even on Dragon's Teeth maps.
3. If you are using MSI afterburning turn it off as some users report that it isn't playing well with BF4.
4. For Win8 (I know you're Win7 but others reading may be Win8) users try running BF4 in Win7 compatibility mode. Right click on bf4.exe, select "Properties", then "Compatibility" and then choose run as Win7.
5. Better Battlelog also causes performance issues so try disabling it and see if that helps if you are running it
6. Razer Game Booster and Razer Cortex have also been reported as creating playability problems with BF4. if you have these programs installed disable them before trying to play BF4.
Isn't it easier just to do the clean boot I suggested ? 😛
