They should already have enough control to implement what you describe without changing the game at all, unless the game is doing something to introduce latency

They should already have enough control to implement what you describe without changing the game at all, unless the game is doing something to introduce latency outside the drivers control such as threaded rendering I’m very interested to know what they did beyond standard low latency frame scheduling, and why it required hooking into games to the point of triggering anti cheat