The solution is really simple - make all competitive gaming events LANs with standardized hardware that is not touched by players before the event starts. For

The solution is really simple - make all competitive gaming events LANs with standardized hardware that is not touched by players before the event starts. For regular online gaming, you can train a neural net to detect cheats like this, biased by the players score. If the cheat is introducing enough error for the player to be killable, its not ruining the experience for the rest of the players.