Increased yes, but not by a whole lot. See https://cdn.arstechnica.net/wp-content/uploads/2020/11/CPU-p... and https://cdn.arstechnica.net/wp-content/uploads/2020/11/CPU-p...

Source: https://arstechnica.com/gadgets/2020/11/a-history-of-intel-v...

(I'm sure someone could dig up more recent graphs, but you get the idea).

In order to get more performance, your app needs to use multithreading.