R2D2 difficulty?

So im getting an empire team ready for R2 next week, and im wondering how beefy they need to be. Because Thrawn was incredibly hard with my lvl 82 g9 fully modded Psquad, bt i just strolled through yoda with my two pjedis, and 3 g7, lvl65-70 jedi that didnt even have full mod sets. and none of them even died, and kanan didnt even taunt. So, who is r2 closer to? Because if i dont have to dump every m3 ability shard and credit into them before next week, that would help with my grind to CLS.