Earlier quoted context omitted.
I actually decided to stop using Waze for that reason. It felt like its routing algorithm is way too aggressive and would take me on shortcuts through smaller streets, just to shave off a minute or two. This in turn would require being much more attentive, since you need to make a turn much more often. I absolutely hated it.
Same, I switched to Google Maps. It seems to have a much higher threshold of "time saved" that it needs to hit before sending you off on some bizarre route.
Sometimes when late I rather save a few minutes and I don't care which route I take.
Maybe they should let one pick whether they want an aggressive route or not. There's always google maps for slower highway mostly routes.