The program allows to increase the speed of the game, making it faster than normal, on computers with a good processor the days and games can pass faster.
You can choose between two versions.
1: FM 21 Super Speed (It may be necessary to put the file in the list of allowed items of your antivirus, do not worry, because it is a cheat it is accused as a virus, but it is totally safe)
2: FM 21 Super Speed (Cheat Engine Required): If you don't want to put the file 1 in the list of allowed items on your antivirus, you can use option 2, but you must install the Cheat Engine, download the latest version directly from the website or use the executable in the folder (CheatEngine72).
Site Cheat Engine: https://www.cheatengine.org
There is no risk of your game crashing, but it is always a good idea to keep 3 saved game files.
Video for my channel [only Portuguese-Brazil]