I think 'flicker' is the wrong word. What the author means is delay/latency/jank. 'Profiling' or inferring the animation is what engine already do. The problem

I think 'flicker' is the wrong word. What the author means is delay/latency/jank. 'Profiling' or inferring the animation is what engine already do. The problem is as an author you're not getting predictable performance. Imagine making a tweak and then rendering engine X or Y no longer infers the animation and now you have a large performance regression.