Welcome to HCM.
Kindly take the drug for prescribed period. It is not possible to judge based on the single test.
I advice you repeat the test after 3 days of abstinence. If he has any signs of UTI, it is better to take course of antibiotic and then do the test.
If again the motility is low, consult urologist
to rule out vericocele. Doppler will be done to confirm these.
If he does not have any vericocele i advice you to see infertility
Hope I have provided the information you needed.
Wish you good health. Take care.