Cuckolding works when both husband and wife are getting something out of it they wouldn't otherwise experience.

For a cuckold, that's the intense arousal and pleasure that comes from his wife having sex - great sex - with another man. That pleasure can take dozens of different forms, from the joy of watching her orgasm with someone else's cock inside her to the thrilling humiliation of cleaning someone else's cum out of her to so many other pleasures.

For a hotwife, it tends to work best if her husband can't quite fully satisfy her desires. It doesn't have to be about her husband's cock size or beta energy or that he cums too quickly, either (though all of those things can contribute to a lack of sexual satisfaction on a woman's part).

It could just be that she really, really loves that new relationship energy that's not possible to experience in a long term relationship. It could be that she really likes the thrill of fucking new people or even fucking strangers. It could be that she likes the sense that she's cheating. It could be that she gets off on that incredible look in her husband's eyes when she comes home after having had sex with another man.

Whatever the reason for her sexual pleasure as a hotwife, give her the freedom to explore it if she's at all interested. Don't limit her to doing what turns you on. Let her do what turns her on and make sure that you find a way to experience that cuckold joy along the way.