Getting huge fps drops during fights

[Fr0stPh03niX]

Since the plains of eidolon update, I keep getting huge fps drops (from 80-100 to 30-40 fps and stutters) when large amounts of enemies come on my screen and fighting begins. This only happens during intense fights as I am usually over 80-100 fps in the open world/other game scenarios. 

Can anyone please recommend me what to do as this is just sad for me and makes the game unplayable. I have tried lowering settings too but in vain. It doesn't matter whether or not I set my graphics to medium-high or hell even low, it's the same case every time! 

My specs are as follows - 

Processor - AMD fx 8320 Black Edition

Motherboard - Asus m5a97 Evo R2.0 

Graphics Card - Zotac Gtx 1060 AMP! 6gb ddr5

Ram - Kingston Hyper-X Fury 8 Gb (2*4)

HDD - WD 2 TB (WD Blue and Purple internal), Seagate 1 TB Backup+ external 

CPU Cooler - Cooler Master Hyper 212 EVO

PSU - Corsair RM 750 

Monitor - Dell S2216H 22 inch IPS

Mouse - Logitech G102 Prodigy

Mousepad - Steelseries QCK mini

Keyboard - Microsoft Wired 200

Cabinet - Corsair Carbide 400R

Speakers - Creative SBS A200

Operating System - Windows 10 Pro

[Token-]

turn 64 bit off, try to lock your frames to 60 and vsync off