is rapid shot can do all game contents easily and fast bossing or no ?

-hi i am thinking to buy the game
but the only class i like mercenary witch hunter or gemling legionare rapid shot

-i tried using pob max dmg i got 100k dps ( i know there is still somethings not calculated right ) but it is still too low

-but when i check poe 2 ninja i find max dmg so low compared to other builds like galvanic shards the differnce so big in dps won't ggg buff the rapid shot and make it playable ?

-and is farming currency take forever for noob ? i played poe 1 and it was so hard for me

-and i checked prices i felt it is high that drawing me back also

-and how long till the game release for free ?

-and could u check my build and enhance it please ? this can encourge me buy the game and play it even with all things i am worried about

https://poe.ninja/poe2/pob/ae10

-the build i made cost alot , i dk what can make it better and cost cheaper ?
and i want the also be good defensive

-and is there a nice rapid shot build ? give me link pls