Low Morphology Help!

My husband and I have been trying for 2 years with no luck. He got his SA back and everything is normal except for low morphology. It’s at a 1 and should be a 4 or above. He just started taking Ferilaid boost, fertilaid count and fertilaid motility. Heard good things about it. I’m also taking supplements as well and I have been tested and I’m ovulating. I would just like to know if anyone has been in the same boat and what your outcome was. He stopped drinking 3 months ago, doesn’t smoke and only has 1 cup of coffee a day so the whole drinking, smoking and caffeine problem is not an issue in our case. Help!