my big problem is massive fps drop..this occurs from the patch 4.3 until now
i tried every way to improve but nothing changes.i heard that someone got this trouble related to window update or something else.but i tried to fix even lower the game settings
-tried to clean everything unnecessary to boost for the fps in game..when i log in the game..i saw my fps back to normal is 100-110 fps and then drop slowly to 20 even 17..almost cant play game

Date & Time: 10/17/2018 (maybe before too, never checked it)
Frequency: Always 100%
World Name: Omega (EU)
Character Name: Cath Vega
Party or Solo: Party
In-Game Time: any time
Area and Coordinates: Alphascape 1.0, Alphascape 4.0 (maybe other parts too)
Steps:

GPU Utilization is always max, but in alphascape the GPU Clock goes down to 1775 Mhz (normally outside its 1885 Mhz), also the Core Temp dramatically inscreases to 83 Celcius which is Max to the Perf Cap Reason to Throttle is Temperature.
This is the only game and content ingame which does this occur. Instantly after leaving Alphascape its back to Normal and Temp will never be Cap Reason.

GPU: Nvidia Geforce GTX 1080
Driver Version: 416.34
CPU: i7-4790K CPU @ 4.4
RAM: 16G
Hard Drive: SSD
OS: Windows 10 Pro 17763.104
OS Version: 1809
Graphics Settings: Maximum, also tested which HBAO+ High deactivated (which cause very high FPS lost)
FPS Limit: No Limit.