Who attacks first in pvp?

So I buffed up Hans speed and now he is at 200 + 70 base speed without leader buffs and using lando as leader so he is my fastest by far... But some how some way he was so slow that he never even got a turn in a pvp match I just had. Against boba lead, Qui-hon, Lando, Anikin and Han. He received no turn meter reduction too, no speed debuff or any debuff at all.

My slowest, went 4th.

There must be some other modifier that determines when an allies turn is because it can't be just speed alone.