Every video game has a Frame Rate which can vary from 1 fps (frame per second) to infinity. However, the maximum fps that a game can render depends on how powerful the hardware is that the game is running on.
The higher the number of frames per second, the smoother the game will run. A low frame rate (or frames per second) of a video game should not be mistaken with lag.
Console Frame rates
On consoles, a game will typically have a set frame rate by the developers. Most commonly the Frame Rate is locked at 30 Frames per second. This is due to technical limitations of the hardware the game is running on. 30 fps is a good rate to lock it as the human eye can process 30 images every second into what the brain sees as one moving image sequence. 60 fps is considered the optimal framecount for a console game.