Oddly enough - using a template makes it longer for me.
Templates are terribly time consuming for me. I can crop and resize pretty quickly; anything else I have to do (line up to a template and clip to size, rejecting layers, etc.) slows me down.
The fewer the photos on a page, the faster the page comes together, at least for me.
I am the opposite, with photos -- the more photos, the easier it is for me to pull a layout together. Every photo reminds me of a companion photo that is needed to tell a complete story or to illustrate a complete idea. The MOC layouts that required only one photo were by far the most difficult ones for me and took the longest to pull together.
As far as speeding up my own scrapping, the number one thing that takes me too long is the searching -- looking for a suitable template, looking for the right kit, picking out the right font. I tend to stick to a few kits, a couple of fonts, and refresh them occasionally (not often.) Reusing kits and fonts saves me time in searches, since I already know what is in them and how they might work on my page, without having to try them out.
Sketches and scraplifts can speed up the process for me; all of the placement ideas with none of the tedious clipping and aligning. However, searching for a suitable sketch or layout to copy uses up all that saved time and more, so unless it's for a challenge (and someone else picked out the sketch for me), I don't use those much either. I have a book of sketches, and those are helpful for when I'm struggling for ideas, but in those cases, I'm not making much progress on my own and that time spent searching is actually productive, and not time stealing.
All of this works for me because I scrap for photos, not pages; I'm trying to show off my photos with a short explanation of what they are, in an aesthetically pleasing (but not necessarily creatively unique or beautifully outstanding) display. If I think I want something specific, and it's not in the kit I'm using, I do something else. (Either change my idea or substitute a different element.) Those are not the important parts of my pages.