Will add more! SPF - Scripts Per Frame (how much scripts scratch can execute in a frame, below 1500 indicates script lag) FPS - Frames Per Second (how much frames are in second, should be around 30 otherwise indicates project lag) PMS - Perceived Milliseconds (How much in-game milliseconds compared to 1 real-world second. should be at 1000, otherwise indicates time lag)
credit to @macromania for some of the fps detection
