In 1964, my second grade teacher told me that cursive writing would help me write faster. The transition and being forced to use it in all my classes only made me slower and unable to keep up as well as not wanting to write anything for anybody. My cursive handwriting was always terrible and still is. My signature is a scribble. Once I was out of high school, my signature was the only thing required in cursive, whether it was legible or not. All through college, and engineering career, not needed. Our founding documents have all been copied letter per letter into standard easy to read font in both hard copy and digital. Some might even be written in stone(not cursive mind you...)
Are you a lefty?
Your second grade teacher was correct. You can write faster in cursive, than in print.