Thanks for your query.
I have read your query & I understand your concerns.
Your husband has low motility ( especially rapid motility). But its is not a major problem.
Please improve your husband's diet & excercise habits. Have life stylemodification.
Please start taking antioxidant tablets
after obtaining prescription from your infertility
If you are in hurry to conceive please go for assisted reproductive technologies like IUI.
I believe your motility will increase when you follow above instructions and repeat the test after 3 months.
All the best.
I hope I answered your query. I will be available for any followup queries you have.
IVF & Infertility Specialist.