Just want the admin to know that this "security feature" is a real pain in the ass. It sometimes takes up to 5 minutes to finally pass.

5 minutes? Why too long? I know that solving captchas before logging in here changed in order to provide additional security, as far as I remembered it was only 3 - 4 captchas before but now it goes up to 5 - 6 . But despite the changes, it's still hassle-free for me simply because it's easy for a human to solve it. Maybe you are experiencing "reconnecting to captcha" that's why it took you 5 min. (probably due to slow internet). Just a tip, check the "always logged in" and do not delete the "forms" in the settings of your browser.