Tzteosh, Hungering Flame ...aka Destroyer of fps!

Tzteosh, Hungering Flame when unleashing Raging Spirits in a cluster fuck called "Double beyond mod" destroys Fps! IT becomes 0! Game stops. Now I've heard there is some sort of problem with game code and AMD processors but that just doesn't make sense to me since my graphic card is not bottle-necked by my CPU.
This specs runs much more demanding games than Poe. So I doubt ill buy better pc for less than average game graphics that Poe presents. Problem lies somewhere else. Until you fix whatever is making fps drops...cant you just hot fix this boss? ( that should really not be a problem since you can remove his ability to cast Raging Spirits). I would really love that someone provides some clarity and answers why was nothing done from beyond league to this day about this what appears to be a simple issue)

This is my Dxdiag

Time of this report: 1/16/2017, 20:23:03
Machine name:
Machine Id:
Operating System: Windows 10 Pro 64-bit (10.0, Build 14393)
Language: Croatian (Regional Setting: Croatian)
System Manufacturer: To be filled by O.E.M.
System Model: To be filled by O.E.M.
BIOS: BIOS Date: 04/07/14 17:25:35 Ver: 04.06.05
Processor: AMD FX(tm)-8320 Eight-Core Processor (8 CPUs), ~3.5GHz
Memory: 8192MB RAM
Available OS Memory: 8092MB RAM
Page File: 3250MB used, 13033MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, with HDCP
DxDiag Version: 10.00.14393.0000 64bit Unicode
Display Devices
---------------
Card name: AMD Radeon R9 270x

I have better specs than you, and same result, 0fps until it is dead.. i just hold down cyclone and wait for him to die