C++ is a powerful programming language popular for high-performance applications and systems programming.Advanced developers can optimize performance using techniques like move semantics and perfect forwarding.Smart pointers like std::unique_ptr and std::shared_ptr enhance memory safety in C++.Compile-time computation with constexpr improves performance by allowing computations at compile time.Metaprogramming with templates and Concepts in C++20 enhances readability and enforceability of code.Structured bindings in C++17 allow for cleaner code by unpacking multiple return values elegantly.Inline assembly can be used for low-level optimizations in C++, but compiler intrinsics are preferred.Benchmarking with std::chrono in C++11 provides high-resolution timing for performance measurement.Custom allocators can optimize memory management in performance-critical code in C++.Coroutines in C++20 simplify asynchronous programming by enabling suspension and resumption of functions.