Nowhere in the comments it is shown to be a false claim.
"Faster than C" is doable, but needs qualifiers, e.g:
CUDA in modern GPU hardware is faster than dektop C.
JITed Java was shown to be faster than C in several cases, because the JIT compiler could make adaptable optimizations based on the actual runtime environment.
And, any competent language that takes advantage of multiple cores easily is faster than most C equivalent programs (even most multi-threaded ones).
"Faster than C" is doable, but needs qualifiers, e.g:
CUDA in modern GPU hardware is faster than dektop C.
JITed Java was shown to be faster than C in several cases, because the JIT compiler could make adaptable optimizations based on the actual runtime environment.
And, any competent language that takes advantage of multiple cores easily is faster than most C equivalent programs (even most multi-threaded ones).