Why not try watching porn together as a type of foreplay? You could watch her favorite type of porn the first time, then switch off, or even watch both of your favorite genres as foreplay. There is no reason to stop watching porn, and it's more fun when you do it together.
I know that having issues with dysphoria when you're trans isn't fun, but if the two of you work together, maybe you can help each other have a healthy sex life. It will take patience, communication and understanding. If one partner isn't in the mood, then stop and talk as to what the problem may be. Together, you might be able to sort through your dysphoria long enough for the two of you to enjoy each other.
If you have any other questions, feel free to ask. That's what this forum is for, so that us transfamily can help each other.
Welcome to the forum!
Ryuichi