I've found following Strunk's "make every word count" dictum causes me to take much more time when composing. So 4-8 pages per week sounds like it would take an awful lot of time indeed
(I have made this longer than usual because I have not had time to make it shorter.)
I've learned to explain in terms almost stupidly simple because another's interpretation can be so extraordinarily far from your intent you wonder how they even got there. Then they explain how it reads to them, and inside you groan a little because yes, it could be seen to mean that and you had no idea. One needs to user test one's writings just as much as one's software, I've discovered.
[0] WIP