Tomaz Kastrun says reading is fundamental:
Trick your brain into faster reading with the help of Bionic Reading. With the help of highlighting part of the words, it “guides your eyes over the text and the brain remembers previously learned words more quickly.” (source: br-about)
Here is a beautiful example of how text with the use of opacity, colours, size and many other elements can be quickly achieved for faster reading.
Click through for an example and how to implement it in R.