its funny you should say that.
Warcraft 3 is what, 10 years old? And all the animations are dynamic so you will never ever see animation flickering.
If a game is so shitty that all the animations are baked at high FPS then that is their own fault for making a shit game.
You can always interpolate the frames to remove all jitter.
My TV has this feature (MotionFlow), and my pc monitor has this feature (they call it something weird)
The human eye can't detect more than 30fps when there is constant light.
Remember that the human eye detects light only. So if there is a 0.00000000001ms flash of light, you will see it fine. But if there is a 10ms flash of darkness, you will not see it.
In a computer situation where there is constantly light coming out, unless you have extreme changes in contrast (aka your computer is basically acting as a strobe light) then your eyes won't even factor in to it.