How to write fast:
Write in cursive/joined up writing.
Idk whether it's hard for u guys but it's easy for me. It's because I live in London/Britain and primary students (or elementary students in American) have to learn how to write in joined up handwriting.
However, secondary school doesn't really support this rule and most people forget about cursive handwriting.
Cursive handwriting is writing with the letters of the words joined up together, by the way.
And trust me, I can write anything you want quickly, I'll post a video later on ;))Source:
Myself...