First of all, sex is all about communication, trust, respect. In partnerships, you have to be somewhat flexible and accommodating in life, and the same goes for sex. You like certain things, she likes certain things. There needs to be overlap for compatibility but males push more. I am hoping you are good and willing to indulge her fetishes/desires equally.
Many women enjoy porn, at least physically but less do mentally. There can be aspects of shame, certain religions and fear, these are aspects of socialization and gender roles. Porn is incredibly male focused, at least normal hetero porn is. It shows a dick, some odd looking male (if they are shown at all), and a beautiful very young female, often the sex is super agressive, positions are not comfortable for females, etc. Too many guys hammering away at awful angles, no concern for female pleasure because she looks …. faking it. Most performers are performing, they are paid so they are not enjoying it. It can be a lot of positive or negative things, depends on perspective but it is highly oriented towards males and male enjoyment. You might be watching porn to get off, she might be nervous, think post-nut clarity.
I am generalizing here but clearly porn sex is not what most people do, sort of a self-centered approach to male pleasure. If that is what she has only seen, then sure, she will not like porn. There are alternatives, there is porn for and made by women. It is more difficult to find. There is also porn celebrating males but that is more likely gay or interracial because the males is not just a dick, usually they are more than that. There is porn with more realistic body types, typically it is more amateur. If presented carefully and respectfully while thinking of her needs not yours, then you could find something that she would like to watch on most sites (pornhub, youporn, etc), let her watch it alone or while you give her oral sex or something. Blacked is probably not a good place to start, super hollywood, but DFW Knight could be. Or whatever fits. There are also paid sites to consider to get better quality and women who enjoy performing.
But remember that you do not enjoy all porn, you probably like interracial but just a certain type of that even. Mostly large black men on white women. You figured that out over how long? How much time viewing? Well, she has not started so she needs to find what makes her wet. Mentally as well as physically. Sound off though, it will throw her off.
But as people age and spend less time working out with busy lives, there is less porn that represents them
and this is so much more pervasive for females so it can be difficult to find things for her. Porn loves to show unattractive guys with ‘beautiful‘ females. If she does not look like that, it could be excluding her and make her feel less worthy. Lots of generalizations here. but your perspective is quite into a kink, probably interracial, but she might be visually turned on by much less graphic stuff.
Also, she might not be into visual, maybe not yet.
There is literature on Literotica, lots of kinks. She could read it
it is a journey together. Enjoy it