That alone can cause a speedup in a select few games like GoldenEye, Perfect Dark, Mario Kart 64 (partially: MP, some stages), Carmageddon, and San Francisco Rush games (partially: MP). To be used with the 1964 Ultrafast, which includes CPU Overclocking. Notably, the walking speed and animations might play at double speed, which can cause some gameplay problems like for example making a mission impossible to beat in Metal Gear Solid Peace Walker because the enemies are too fast. These are often game-specific and very prone to bugs considering many of the games weren't made with 60 FPS in mind.