To a certain extent I disagree. Performance is very important and accurate mocap is next in line, but, what does on under that polygonal character mesh is the unsung hero of truly believable CGI humans. The custom scripts, mind boggling rigs, blend shapes, clusters, muscle systems,,, not to mention the multiple layers of animation that is keyed over the mocap by skilled animators. This is not kids stuff. Talented people outside of the studio environment can still hope to do animals and dinosaurs and monsters and fish and birds, but humans? no way. Too difficult to fool the audience.... and the reaction from audience members when a CGI human is not spot on.. I mean, there is no forgiveness. In the days of Dick Smith and Rob Bottin, prosthetic make-ups were admired and appreciated even though you could always sort of tell they were rubber glued onto the actor's face. They looked good but they were rarely convincing and they never really fooled anyone. CGI is not afforded that much leeway. If it isn't perfect, we HATE it. I'm not talking about industry people. I mean the average person watching a movie has a low tolerance for not so good CGI.