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 the greek wiktionary for a translation. (For context, I'm reading ~mainly fantasy, sci-fi or dystopian books of the 20th and 21th century and currently I'm on "Croocked kingdom". I haven't dared to try reading a classic book in english.)
The issue is that this effectively slows me down by an extra ~50% time per page and I'm not even very sure that those words are remembered. I could simply keep reading without searching the words up and just use the context to get a vague sense of their meaning (or simply ignore them as they ~usually aren't necessary to the plot), but I think I'd miss on the whole experience by doing this and it doesn't address the underlying issue (being that I don't know english extremely well even if I have C2 and scored high on vocabulary), which will perpetuate the problem. I'd like to note that I have made searching words almost as efficient as it gets by using downloaded dictionaries, so I don't think I can reduce the time I spend looking up words by anything more, at least on paper books.
I'd like to ask anyone who searches up words like me:
Did you eventually reach a point where you learnt enough words this way, that it wasn't that much necessary to use dictionaries anymore? (I'd be kinda satisfied if I could reduce the frequnecy of unknown words to 1 per two pages or something.)
As a native English speaker I have to look up words all the time. One of the best and worst things about English as a language is that it's actually constantly evolving. It also takes words from other languages and authors have a penchant from just making up words depending on what type of literature you read. I wouldn't worry so much about reading fast. I understand it can be frustrating. But sometimes words being a mystery is part of the experience. I read a lot of sci-fi and there's a lot of times that authors will just simply make up a word or concept. There can be an etymology for it based on some sort of like Sumerian text or random stuff like that. So don't stress it