A high quality result, and a satisfied customer, is like money in the bank. Some jobs just do take ages. Unless you're getting late for the next job, why worry?
I carry a tray with my 4 or 5 most commonly used spotters, various types of coaster, scissors, bolster, host joiner (the best spot agitator ever made) and a couple of brushes. I always put the item back in the tray (when I remenber, anyway). Try & think about the next thing you'll need if you have to make a trip to the van.
If you're running a porty save yourself all the bucketing by getting a hose on the hot tap.
After 17 years, and now running a TM, I still reckon 3 to 3.5 hrs for 3 pce suite. Some may be a lot less, and a few a bit more, but when planning my diary - 3.5.
Draft marks - well agitated splitter used after first go at extraction, especially around skirtings, brushed in with grooming brush.
These days I do have a target hourly rate in mind, but some jobs work out half target, and some nicely over.
Looks like you did a nice job.