Don't take much effort?? Whoah if you're so great then go ahead and volunteer to fix the faucet. The devs don't owe you anything! You sound so demanding. Chill.
what's the exact problem needed to be fixed? Captchas take too slow to load? Put the image generator on a different server that's a little more powerful. It might be that the library generating captchas is also too inefficient, so look for alternatives that have a better performance. Or just use the most popular image captcha library, which should already be optimised.