Almost all of Apple's "responsiveness" advantage is from careful software tuning. You could get a windows trackpad to feel as good as Apple's if you tuned the acceleration curves and added better palm detection.
So why isn’t it done? I think it’s not controversial to say that the trackpads (or “trackpad experience”) on MB*s are just plain superior than anything Windows has access to.
You should use one of the newer machines with the precision trackpads. They are pretty good, and keep getting better with windows updates.
A lot of it is priority; the trackpad working well is a low priority for most manufacturers in the face of other things like better looking benchmarks etc.
That attitude, the holistic view of the experience, is what people are willing to pay more for with Apple, that not everyone values.