the fastest way i found through the dlc rooms, if you need soul, don't jump at the first flying sentry after the first dash, instead do 2 dashes, and upslash right before you wall jump and upslash again, you have to react to the final sentry, i messed up a wall jump there but you should get the idea, let me know if i'm missing something (messed up the first husks a little as well but oh well)