The swiping needs to require less precision IMO. There's a training thing on FUTO's website somewhere that will give you a string of words to swipe type (accessible only via mobile). That's how they improve the swipe feature overall, but I think some people may have been too careful with it. Be sloppy, be imprecise, make it learn how normal people swipe.
Personally, I prefer a bit of sloppiness when it comes to swiping anyway - because if I wanted precision, I would actually type the words. GBoard is pretty good at figuring out that swiping s
m
w
or a
m
s
was probably supposed to be "and"; and other such words that aren't super accurate when swiped. FUTO keyboard is not very good at that, at least at first haha.