Looking up words on digital dictionary slows me down, does it get better?

So my main language is Greek and I read english and greek books. Depending on the book/author I may have 2-5 words per page that I may not understand (or at least I want to understand them better). Thus, many times after I finish a page, I use aard2 and either search the word in the english-to-english dictionary or (rarer) in...