Trial of Chaos - Uxmaal the Beastmaster

This is the worst boss fight I can remember. The level is multi-tiered and the boss flies away as soon as I engage, so most of my time during this fight was running up and down stairs trying to find him. When i start to build dps with the intended combo framework in POE2, the boss flies away.

For this fight and frankly many other aspects of the story so far: I don't have unlimited time to play video games. Being hard is fine, but it feels randomly difficult and unrewarding right now. Maybe I'm getting too old for this, but some of the boss fights and levels seem way overtuned, and when I finally beat it, nothing drops. Fighting a minor boss thats wildly difficult then stomping a major boss in 1 try is not fun, especially when magic items and a scroll of wisdom is all they drop.
Not enough currency drops to replace what I use to craft or try to cap resists with rune sockets.

The truth is that the game, especially when doing a campaign, does not reward fairly. The last act plus a few maps in the endgame took me about 11 hours and in that time I ONLY dropped one Exalted Orb. Ridiculous. So how am I supposed to craft something myself?

Edit:
And yes this Boss is annoying as hell. Searching for him is just embarrassing.

I Second this, boss spends more time flying around than in the ground, and you magically take damage from thing that is not even on screen or while the boss is not targettable