The "frame lag" you're talking about is just Hz or FPS rewritten in milliseconds per frame. But that's an important number to bring up, since it is definitely noticeable when something doesn't change for 16 ms versus 4 ms. 120 Hz is ~8 ms and 240 Hz is about ~4 ms.
The "frame lag" you're talking about is just Hz or FPS rewritten in milliseconds per frame. But that's an important number to bring up, since it is definitely noticeable when something doesn't change for 16 ms versus 4 ms. 120 Hz is ~8 ms and 240 Hz is about ~4 ms.