Reduce measure to ~60-70 characters
The current measure of the page is > 90 characters. This is too wide for comfortable reading. Let’s reduce it to 60-70.
“Anything from 45 to 75 characters is widely regarded as a satisfactory length of line for a single-column page… the 66-character line (counting both letters and spaces) is widely regarded as ideal. For multiple-column work, a better average is 40-50 characters.” — Robert Bringhurst, The Elements of Typographic Style