This has been studied a lot in design. Most people prefer line lengths in the 50-60 character region. Some studies show lengths up to 75 to be appropriate, but that’s about the limit. Past that people have a hard time keeping track of where they are and find reading to take more effort.
That's way too short for me. Somewhere between 120 to 150 seems a good minimum, 200 or maybe up to 250 are much better maximums, maybe even a bit higher. I lose my place easily when I have to change lines so damn much.
