With proper overloads you can easily track your memory usage or even which instances are leaked. So yes, C++ is low-level (it does after all include C), but it

With proper overloads you can easily track your memory usage or even which instances are leaked. So yes, C++ is low-level (it does after all include C), but it has features to abstract away tedious details — this allows higher level programming but being in control of how the abstractions are implemented, as there are many performance trade-offs in choosing (implementation of) abstractions, and that is what makes C++ such nice language for software where performance is important.