I do understand, that's why I also mentioned Retina scaling because I know that Windows doesn't do the same amount of scaling work that OS X has to do. OS X is more complete and consistent for sure but honestly, I would rather have a faster and responsive GUI than a flashy one. Apple needs to do shorter and quicker animations or provide an option to disable them all at once. Reduce transparency doesn't do it.
Just the opening tab alone in Safari is slower than Firefox and Chrome on OS X. If you CMD+Click, it is faster. That's the thing I don't like about OS X, it makes OS X slower than it should be, there are so many areas where OS X is slower because it has to perform an animation first.
The fact that I don't care about incomplete animations on Windows tells me that it really makes no impact on me and Apple needs to rethink about this.