When using agents like this, you only see a speedup because you’re offloading the time you’d spend thinking / understanding the code. If you can review code faster than you can write it, you’re cutting corners on your code reviews. Which is normally fine with humans (this is why we pay them), but not AI. Most people just code review for nitpicks anyways (rename a variable, add some white space, use map reduce instead of for each) instead of taking time to understand the change (you’ll be looking a lots of code and docs that aren’t present in the diff).
That is, unless you type really slowly - which I’ve recently discovered is actually a bottle neck for some professionals (slow typing, syntax issues, constantly checking docs, etc). I’ll add I experience this too when learning a new language and AI is immensely helpful.