A comic book film will never be able to capture the beauty and expressiveness of its source material, ever, and the worst CBMs are usually the ones that stray the farthest. And even the good ones that deviate still suffer because of it. It is unavoidable, they will always deviate, typically for the story, but I also think it stems from apathy. I feel like I can just tell when the people making something do not care and when they do. The Batman, for example, is one of my favorite CBMs because despite its deviations it to me is the most faithful version of Batman ever put to screen, it holds a lot of reverence for the source material and it shines throughout the entire film.
James Gunn's GOTG movies have some of the most egregious deviations from comics but those movies are actually good, mainly because of Gunn's writing and directing, and for the story he wanted to do maybe things like making Drax a human or making Mantis even remotely like she is in the comics would have made the films worse and over-complicated, who knows. Despite that I still think it is ALWAYS better to follow the source material as closely as possible. It is typically not storylines being adapted but the characters and their circumstances. Since Kraven is not Holden Caulfield and has appeared in not just one book but decades of material, to properly research and ascertain what this character is like beyond reading some wiki pages takes some effort. And if I'm a studio exec looking to cash in on a Spider-Man character I probably wouldn't give a shit about that. I do not have any faith that anyone involved in this movie actually cares about Kraven or has even read a single story with him beyond Last Hunt, if even that. This movie is not being made out of someone's love for this character. It's easy to say that complaints like this are small fries but to me they are what make or break CBMs. Adaptations are almost always worse, and adaptations that take a blueprint of a character to fit in with a preconceived corporate-sanctioned idea instead of doing something purposeful and meaningful always fall short. I know I won't enjoy it but I really hope that you do! And hopefully it will draw in more readers to Spidey books.
EDIT: and to add, I think pre-Disney MCU is my favorite MCU