Let the woman do what she does best. If she is a net player let her play the net and take an extra step in. If she is a baseliner then play the net and be a ****** at the net.
Women who play mixed generally do better with pace rather than spin. They never face real spin while playing with women, they would rather a guy hit the ball hard at them than have topspin take the ball out of their strikezone or to drive them wide off the court.
If the other team crashes the net, lob the girl. Again there are very few women who can take a few steps back at the net and attack an overhead.
Don't be afraid to go australian against the guy when the woman is serving. Taking away the high percentage cross court return and taking away the return angle is often a better strategy than lining up normally.