I didn't realize she was still live when I saw it posted a little bit ago, been watching about 5 minutes and she's not triggered an alarm and died, so I'd say she's about #2 overall in performance.
She understands Enforcers, but she's still seeming to struggle with the idea of utilizing non-standard paths or braving viewcones to get around guarded areas with Enforcers. One thing that I think a lot of people would benefit from when it comes to playing this game is that if you're not going to get Silent Assassin in the first place, you can bait patrolling enforcers into breaking circuit to follow you. Once you're deemed 'suspicious' by an Enforcer they'll chase you down and stare at you for about ~10 seconds before going alerted and either going aggro or raising alarm. During this period though they will always try to path to you to be next to you. Typically people run, don't break line of sight and still cause an alarm, but you can weaponize the AI's tracking to lead them into a blind corner, let them approach, circle around behind and choke them out or if you have a non-lethal weapon, bash them in the head.
Exploiting that, guard's reactions to stray guns laying on the ground, throwing items as distractions, and learning how to stage kills to chain kills, and grasping just how much you have to risk being seen sometimes to get through areas are critical to long term success in Hitman games and for some of the variant challenges, escalations and other such content it can become mandatory to know how to exploit these kinds of things.
Of course, it also helps that 90% of World of Assassination expects you to learn and exploit the mission stories to create your own openings, a lot of the time trying to catch a target in their circuit and take them out is going to be a lot harder and requires a significant amount more skill and understanding of the map and what will get you where you need to go. Trying to catch De Santis on her circuit around Caruso's manor is a bigger pain in the ass than if you trip any of the stories that involve her leaving the area, though at least one of them do require you to approach her in the first place. Her best shot at taking out De Santis as cleanly as possible is to take the roundabout back path up to the third floor balcony, she was there before when she choked out the one housekeeper and stuffed him in the box on the second floor veranda. With access to that spot and a screwdriver, she could expose the wire in the surge protector powering the electric fan up there and then turn on the hose when De Santis goes out there to smoke/talk on her phone. She'd still have to deal with possibly being spotted out by Enforcers, but there's decent spots to hide and if she goes there to prep when De Santis isn't near there's only maybe two guys out there without overlapping view cones, and a large box she can hide them in.
e: She learned about propane in the chimneys.