Some production tying tips: Gather the materials for one pattern and place them in a flat container. Count out the number of hooks you need. If you're using a bead head, place it on the hook. Try to accomplish at least a half dozen at a sitting. The muscle memory will speed up after a few flies, might as well take advantage of it.
Any material that needs to be cut, like Chenille, wire wrap, rubber legs, cut ahead of time. If you need to select feathers, do so, so you can just grab them and not select for each fly in the middle of tying. Use the best lighting you can possibly can. Bad light slows tying down by a considerable margin. You want to replicate, not experiment, so have the pattern firmly in mind when starting. Think about them catching fish!
Sorry to bore those who have some of this ingrained in their tying habits or have much better protocols in place.