Turn this Off if you are using an external limiter like RTSS or NVIDIA's control panel. Guide :: Assassin's Creed II Stuttering and Performance Fix
Modern multi-core processors can cause the game to "hitch" because it struggles to distribute the load. Assassin's Creed 2 - How to Boost Fps, Fix Stut...
Use the tool Process Lasso to automatically disable CPU 0 every time you launch the game. 2. Lock FPS to Improve Stability Turn this Off if you are using an
Some guides on PCGamingWiki suggest setting your monitor's refresh rate to or 60Hz in Windows settings to match the game's internal engine lock. 3. GPU Control Panel Settings Assassin's Creed 2 - How to Boost Fps, Fix Stut...