The FPS, or frames per second, is a measurement of how many times the computer is able to render the 3D graphics image on the screen in any given second. The more frames rendered in a second, the smoother the perceived performance. The most important number is the average FPS, as it gives a solid number for the expected overall experience. Where necessary, we may provide what is called the 1% lows. This number shows the average FPS of the most frequent performance dips. When we share this number, we may be looking to show one of two things, either how frequently the software dips in performance, causing noticeable visual stuttering, or to show you how well the software runs without these dips.

In general, having a frame rate of 30 FPS or higher is desirable to avoid noticeable frame rate jitters. To achieve the best experience, it is best to meet or exceed what is called the "refresh rate" of your display. In most simulator situations, the projector and monitors run at 60hz (meaning it refreshes its image 60 times in a second). In this situation, running at or above 60 FPS will give you the best experience possible.