Totally Irrelevant from why they attack first, but why is it that your D.Ichi doesn't seem to have any type of defense or immunity on him. Are you doing a full 6 set Ult Equipment? It's better for him to have a 4-2 or a 2-2-2 equip set. Also you need to increase his hit rate as he should not be getting dodged. His heal and aid rate could have won you that fight. You have Tensa so don't skimp out on your VG
What r the partners ur opponents have? Do they have shinso? Also check for the mods of all his partners,if there's anyone with a increase ally spd then that that extra spd prolly coming from there