When high performance is crucial, such as in game programming, C++ is often the best choice due to its unique blend of high-level and low-level capabilities. Despite being complex and difficult to master, C++ offers the benefits of object-oriented programming, custom data structures, and direct access to hardware and the operating system, without the overhead of a virtual machine or framework. By managing memory allocation and deallocation manually, developers can optimize their code for maximum efficiency, making C++ a popular choice for applications where performance matters, with a vast array of libraries available to support its use.