flyspell doesn't show all the words I've missspelled until the cursor gets close or something 

On the other hand, I like being able to open large files without it being slow to get editing. 

What can you do about this? 

Does this tell you some approaches to fixing this: 

https://emacs.stackexchange.com/questions/50670/how-to-make-emacs-automatically-spell-check-all-visible-text

Thanks! And thanks for everything!
