In the ranking of the writing speed of calligraphy, from slow to fast, it should be regular script, running script and cursive script, followed by crazy cursive script, because cursive script is also divided into types, some cursive scripts can be understood by normal people, and some cursive scripts simply don't know what to write. Regular script is the most normal font that people see, and it is a very standardized font. Every stroke and painting written conforms to the grammatical norms. The words we see in the book are Song style, but they are also an evolution form of regular script. Therefore, when writing regular script, people are required to be very calm and not to write too fast, because if they write too fast, they will not feel that way.
After regular script comes running script, which is something that ancient people are willing to write, because running script is the most widely used in daily life. Except for some special formal occasions, it is very convenient to use running script, because running script does not pay attention to so many strokes, and classification only pays attention to coherence, and it still exists by itself, which will not affect the understanding of meaning. Then his writing speed will be greatly improved, because ancient people will go crazy if they write in regular script all day. Not all the ancient literature we see now is what the book says, and not all ancient people speak classical Chinese, because these things are very popular in the middle school attached to Normal University and are considered elegant.
Whether in ancient or modern times, the speed of writing will affect the quality of writing. The ancient cursive script is the fastest, and the wild grass script is also the fastest, because many strokes are omitted because of paying attention to one go. Just like the handwriting written by doctors, normal people can't understand it, but people who specialize in this field may understand it. The ancient cursive script has its artistic expression, and it is definitely not the scribbled tool people imagine. It has a fixed expression, and how to write any word is fixed.