Poor morphology

Ash • Happily married and blessed to have welcomed our TWIN BOYS via IVF a year ago in March of 2017! 💛🔬🍍👶🏼👶🏼
Looking for hope today. DH has poor morphology but everything else normal. What did you do to correct this? I've read that changing his diet, exercising more, drinking more water and taking vitamins will help. Hopefully we can correct his morphology in the next few months. Should we even TTC or wait?