I want to play very fast ...

Grim Dawn Classes, Skills and Builds
1

Any idea what build is good for fast lvling on act 1 and 2 ?

I like play no AOE skills like 1/2/3 active skills and rest on passive or auras.

Any idea ?

UPDATE :

I go build nightbalde for shadow strike for lov lvl and go ring of steel. Good idea ?

2

Try a 2H Shaman build with Primal Strike as your main damage source. Should help you clear Normal/Veteran contents very quickly.

3

Indeed, Primal Strike Shaman with ranged weapon, focused for lightning damage.

But GD cant be ultra-fast anyway. Movespeed cap of 135% abd other things clearly indicate that. It isnt PoE or D3.