The most important references for my talk are:

• Exploring the limits of no backwards in time signalling, Yelena Guryanova, Ralph Silva, Anthony J. Short, Paul Skrzypczyk, Nicolas Brunner, and Sandu Popescu, Quantum 3, 211 (2019).
• Bell nonlocality, Nicolas Brunner, Daniel Cavalcanti, Stefano Pironio, Valerio Scarani, and Stephanie Wehner, Rev. Mod. Phys. 86, 419 (2014)
• Limit on Nonlocality in Any World in Which Communication Complexity Is Not Trivial, G. Brassard, H. Buhrman, N. Linden, A. A. Methot, A. Tapp and F. Unger, Phys. Rev. LeI., 96 250401, (2006).

You can find my slides via the post link.