Roshi is not a blitz ninja, the only 2 teams with him i saw wich do nice damage round 1 were Roshi/Kurama Naruto/Bee and Roshi/Cursed Hidan/Masked Man. Those were meta for strong players when Roshi was popular, but he is not a fast ninja in any way and he fell out of popularity when everyone started running dodge ninjas.

The fastest teams out of your line up i can see are probably going to be Jonin Minato based. I used to run Minato/Ramen Naruto/WB asuma/Wind Main in sage and that team can kill enemies turn 1 if your move 1 is decent in comparison. Apart from that you c*so run him with Shisui/Kurenai or Kaze Gaara/Gakido, those are gona be slower but safer vs same power.