While GOGOGO is one approach, you also have a choice to be methodical and pickup bonus objectives instead as noted HERE.
I intentionally AFK’d for 20 min on floor 5 by the broker trying to get the time score to zero to prove a point; the timer is only important if you want to speed-run. If you go for objectives you can ignore the timer completely. Doing a blend of reasonable pace (20-30 min) and objectives (85% completion and 8 to 10 bonuses) seems much easier than either extreme as noted HERE. In that post, I also complained that Torghast seems like a “go fast” thing now, but that’s really not the case as shown in my later post (that I linked first).