I think there is a knack. I tried it three or four times, looking on it as a novel like any normal one, and then thinking dammit this won't defeat me - but that was the wrong approach for me. Read it like a poem, read it as fast or slow as it feels,don't put pressure on it or you, feel the rhythms and the words. Don't do it as the first Joyce, you read. It isn't a mountain to be climbed, it is a sea to be swum in and a generous application at the right time of Guinness can also be useful. Don't worry about what you are getting out of it,read it when you don't normally read, read it with music but music that keeps you just unrelated, but still at ease.