What language parser is the fastest?

Question

Parsing

There is a website with dynamic content like youtube. I don't know what to add. Need to spar quickly, what options do you have?
ps comment on the idea please: c# or c++

Answer 1

Is the speed of the language in this case more critical than the speed of data transfer over the Internet?

Answer 2

C++ is faster with the same programming skills. But, as already mentioned, network delays and a ban from the server side can reduce this advantage to almost zero.