Waiting for iui or not

We've been trying for about a year and went to a fertility doctor and my husband has semi low mobility 35% and a 2% low morphology .... I am wondering for you guys who have been through this either to wait for maybe his counts to go up ...he is taking vitamins and not drinking and eating better .... or to go ahead with <a href="https://glowing.com/glow-fertility-program">iui</a> next month?