In this run, I only used my 1st Secret Garden and my Shadow sword. I forgot to take off my 2nd Secret Garden, but I show all 3 weapons anyways.

At the start, I stack up the Secret Garden's unique ability and the Breach Explorer special mod to gain more skill power and range.

Just before the timer hits 0, I throw my poison at the spawn location of the enemies, then grapple and throw some more poison to defeat the enemies faster.

The rest of the run is pretty much the same: throw poison at the specific spawn locations, grapple to the next location, so rinse and repeat.

At the boss room, I grapple to the spawn, throw some poison to defeat the smaller enemies, activate my 4th skill and roll so I can skip the animation and shoot immediately at Bhegze and Celdir to get them faster into the immunity phase, and immediately press my 4th skill again to cancel and roll afterwards to skip the animation again to switch to my Shadow sword, because Celdir's immunity phase is only breakable with weapons.

Overall, a solid run, but I think there is some space to improve because the movement wasn't flawless, so I think sub 1:15 min is very possible.