What build for Amazon?

I started an Amazon with Gas Arrow and so far it has been quite ok, I am doing T10 maps now with relatively ease but of course the clear is slow. I thought about going for LS but now I read that Deadeye is way superior for LS due to the frenzy ascendancy passives. So I already started leveling a Deadeye with LS and it is super fun so far.
But what should I do with my Amazon? I don't need 2 LS builds (especially if one is inferior). What other builds are viable in the endgame especially for mapping?

Lightning arrow is easymode mapper.