Examine
By today's standards, your handwriting would be considered very good. It is very neat. But, like it is being done by most youngsters nowadays, the letters are not joined for the most part - thereby slowing down the writing process.
From my perspective, like most people your generation, maybe 1 in a 100 can write properly. To write fast you need to write in 'running writing' style, like Carrot's 1st z with the nice loop. 99 out of 100 cannot write properly because no one has taught them how to - now that most communication is done electronically.
Last year I offered to 'teach' people how to write for nothing but the response wasn't great. Such a pity since I know quite a fair bit about handwriting and can pass on my knowledge. If there is enough genuine interest, I'd be happy to have an informal 'workshop' to demonstrate handwriting as it should be done, according to me in any case.