Sometimes that is the rub with knit ties that are on the "wider than usual for a knit" side. If it is sufficiently flexible, lightly woven, you can cinch the knot tighter, but if not, then ???. Tying it longer won't necessarily help unless there is some taper, which again can be limited in a knit tie. If you can't get it smaller, maybe try wearing it with jackets that have lower buttoning points as it won't appear to consume as much of the viewable shirt space as it is with this cut you are wearing now.
Yeah, there's no taper. I think your idea about jackets with lower buttoning points is probably the best bet. Thanks.