Not unlikely. 15ms is about the threshold humans can detect latency. This takes you from 33ms to 25ms which is much closer to that boundary.
Also depends on context a lot - on a 7" screen it might be hard to notice the difference, but you can easily tell apart 120hz on a large monitor or in VR.
> 15ms is about the threshold humans can detect latency
I think this is an oversimplification. We can detect latency, meaning a difference between input and screen response, at around 13ms.
But that doesn't equate to a new frame every 13ms being perfect, latency-wise. First, it ignores all the other sources of latency such as from input devices. Assume 6ms latency on the controller, that means you have to get a new frame out within 7ms from receiving the controller input.
That aside, there's a lot more than latency involved in creating beautiful smooth images on screen. For example, humans can detect visual change unrelated to input at about 500hz or even higher, especially in grayscale. I've heard that about 0.5m, or 2000hz, gray to gray is about the limit at which further improvements would be meaningless.
Of course the law of diminishing returns applies here. The fastest screen I've tested is 360hz and I can't say that I see any benefits over a 144hz screen, although I can see the difference in artificial benchmarks on blur busters.
That actually checks out, because the color-detecting cones in the center of your eye are much less sensitive responsive to changes (framerate) than the rods in your peripheral vision.
Also depends on context a lot - on a 7" screen it might be hard to notice the difference, but you can easily tell apart 120hz on a large monitor or in VR.