Changes

The first is the virtual FPS. If this is running at 60/60 then the emulator is running at full speed. The second is the real internal FPS, which is whatever the game actually ran aton real hardware. Most consoles use the following internal FPS based on region:*[https[wikipedia://en.wikipedia.org/wiki/NTSC |NTSC]] (USA, Japan): 60FPS*[https[wikipedia://en.wikipedia.org/wiki/PAL_region |PAL]] (Europe, Australia): 50FPSNote that in more recent consoles, such as the [[GameCube emulators|GameCube]]/[[Wii emulators|Wii]], PAL can also run in 60FPS.

With the move to 3D, however, it took much more CPU power to run games at 60FPS. Most early 3D games run at 30FPS. Some run at even lower frame rates. The Legend of Zelda: Ocarina of Time, for instance, runs at 20FPSin NTSC regions, or 17 FPS in PAL regions. Star Fox runs below that.

If you are experiencing a slowdown, it may be that the emulation is too intense for your system. When this happens, both the video and the sound experience slowdown. To counter act counteract this, you can enable speed hacks, use a less intensive emulator/settings or get a new CPU. However, the slowdown may be part of the original game, and will be emulated. As such there is nothing that can be really done, short of reprogramming the game itself or emulating an overclock. When this slowdown occurs, the video will slowdown slow down but the audio will often continue at full speed.

A way to counter real internal slowdown is to overclock the CPU of the emulated system. This , of course , requires a faster CPU to run the emulator of course. It may result in a smoother frame rate, or unintended effects such as speeding up the entire game. It is very game and system dependent. Emulators that support this:*[[Final Burn FinalBurn Alpha]]

*[[1964]]

These are speed hacks in the form of cheat codes affecting the game's internal FPS for games running at 30 FPS to get them to play at 60 FPS. However, these are often game-specific and very prone to bugs considering many of the games weren't made with 60 FPS in mind. 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 Walkers Walker because the enemies are too fast.