Beat cream cheese and powdered sugar (100g) in a stand mixer or mixing bowl for 3–4 minutes until smooth and lump-free.
Add vanilla and cinnamon, mixing well and scraping the bowl for a smooth, even mixture.
In a separate bowl, whip the cold whipping cream to medium peaks, adding the remaining powdered sugar (30g) as you whip to stabilize it.
Gently fold whipped cream into the cream cheese mixture in batches, blending until smooth and airy.
Pour cheesecake filling over the chilled base, smooth evenly with a spatula, wrap tightly, and refrigerate overnight to set.
To serve, loosen edges with a spatula, remove the springform ring, and transfer the cheesecake to a plate.
Finish by topping with the caramelized peaches, a light sprinkle of the reserved biscuit crumbs, and a drizzle of the caramel sauce, keeping the cheesecake refrigerated until serving.