My wife has told me numerous times that I became a more attentive lover after she started cuckolding me and that I began to focus more on giving her pleasure than before which I believe is true. However, I also think it's because my wife also focuses more on her own pleasure than she used to. Being with other men has helped her to embrace her own sexuality and as a result she enjoys sex more than she used to. I think a lot of women in our generation had a lot of "guilt" around sex and were indoctrinated to believe that they should not enjoy sex "too much". Cuckolding changed all that for my wife.
This is based on a true story. It happened early in our cuckold journey. I'm not sure how he knew, perhaps he saw us drive up together or perhaps I was watching her too intently. Or perhaps he had seen this "game" before. In any case, he pushed us beyond what we had done before as he lightly groped my wife told her that they should put on a show for her husband. When we got home that night we were both super turned on and had incredibly passionate sex.