That is how i work fast poshAlso it's not all about speeding up. Think about where can I put the ladder (safely) where maybe I can reach more windows in one climb. Steps for the big windows instead of getting the a frame out. Mod yer squeegee to do less detailing. When its not so hot wet up more windows then squeegee. Little things like that help.
Not going at it like a bull in a china shop but making good decisions and using my time efficiently
Things like a big patio door with a lot of muck on i would take 2 seconds to quickly soap it up and then do another window so it gets a good soak
Now when you soap the door again after the muck comes off and the scraper stays in the pouch saving time
Or using trad pole on a high bottom window to save messing about with steps etc
Or 0° over a bush to save climbing into it or stretching over it
All little things which make life a touch easier and faster
The trick is to recognise these things straight away when you look at the job