HOW TO FIX FPS DROPS

1: While the game is running, open Task Manager.

2: From the menu on the left, select Details.

3: Find Far Cry 4 in the list and right-click it.

4: In the menu that appears, select Set Affinity.

5: In the new window, uncheck the All Processors option.

6: Leave only CPU 0 / 2 / 4 / 6 enabled, and make sure all the other options are disabled.

7: Click OK. Your game should now run properly without FPS drops.