I find it that as I get used to learning Japanese. I instantly learn the word by looking at it. After that, all I need to do is revise it. Learning the words again on Memrise before revision however, takes time. I would like to suggest adding some hot key or button to instantly skip the word into the revision phase.
I’d suggest you take a look at the auto-learn script. It’s only available on the web and takes a bit of work to establish the (scripting) environment, but it’s worth the hassle. Read more about it here: