Since Ubisoft never released an official 60 FPS patch for older consoles like the PS4 or Xbox One, the community took matters into their own hands with various workarounds: The V-Sync Bypass
Unlocking the frame rate won't help if the engine is chugging. Change these settings to stop massive FPS drops: assassin 39-s creed black flag 60 fps unlock
By default, the game uses a double-buffered VSync that often locks gameplay to if your system cannot perfectly maintain 60 FPS. Since Ubisoft never released an official 60 FPS
