Adma Stronghold - Lannok Droprate

Hello All.

I would like to ask is there any chance to incrase Lannok droprate?

I'm farming Lord Lannok everyday 3 times for about 10 days. It's now near 30 kills.

Didn't saw any gold weapon yet. What's more, only 5 blues dropped...

All I got was:

5 Blue Items
21 Green Items

I don't really know what's more I can do to get weapon for my chanter. It's going to be annoyed.