Your assassin's creed is stuttering every 5-10 seconds and lowering the settings doesn't make it any better? You hate it and you're tired of forcing yourself to keep on playing because the game is fun but lag is killing you? Well look no further, I got you covered.

1. Get Process Lasso from their official site.
https://bitsum.com/
2. Install the program wherever you please.
3. Run the game, open Process Lasso and find ACOrigins.exe.
4. Right click on it and select "CPU Limiter".
5. Do as shown in the picture:

6. Enjoy your lag-free game.

NOTE: There's no need to repeat that process every time you run the game. Just launch the game and have Process Lasso running in the background.