Shakur has talent no doubt, but I don't think he has the power to compete at the top level. Easy work for Berchelt.
The problem with Shakur is that he really does not have respectable power. Haney had that issue early on but now he definitely has respectable power and is dropping and stopping dudes. Shakur is a way better boxer than Berchelt but Berchelt has a huge power advantage and experience over Shakur. He would take 3 shots from Shakru to try and land one, but another Mexican tried that and got shut out 12-0 recently, so who knows.