How to beat the game faster?

I beat Dark Souls III (all bosses) in about 5 hours and 50 minutes—and the thrill of beating it under a set time was pretty fucking cooooool. I want to do it even faster this time. I need tips on routing, build, what to do first, where to go, what to grab ect ect ect, I could totally look up speedruns and take notes but that's like so lame. Advice would be veryyy appreciated