All of that said, if the time is measured in more than triple digit nanoseconds, relative to the hardware capabilities that we have today, it’s slow.
Please do not take that as a reflection on you personally or your work, but rather a reflection on the layers and layers of abstraction we’ve collectively added, and keep adding. While we’ve made it easier for people (especially developers) to write code, we’ve made everything slower, and just continue to mask that with hardware improvements.