Captcha Quality is Terrible

I just wanted to say, that I completely understand the need for captcha, but the one you are using is the absolute worst I've ever had to use. It took me forever to get logged in on a second device. Specifically:

1) The images are too small, even on a 24 inch computer monitor. Making them sometimes too difficult to identify accurately, causing humans to fail captcha repeatedly.
2) Some of the pictures used are terrible. They are too zoomed in, too blurry, or too ambiguous at the angle or distance the picture was taken to accurately identify them as a motorbus, train, etc.  Again causing humans to fail captcha repeatedly.
3) Requiring two pages instead of one, just makes the whole process even worse.

You really need to improve or replace the captcha you are using with something better.  I've used a lot of very similar in style, but the quality was much better.