Date & Time: 8/03/2018 (Since late June)
Frequency: Very often
World Name: Leviathan
Character Name: Aya Valentine
Party or Solo: Both
In-Game Time: any time
Area and Coordinates: Happens anywhere
Steps:
1. Login
2. Move around anywhere
3. Suffer severe fps drops from high gpu usage at random times

GPU performance change before and after you started having the issue: GPU used to run very smoothly before (late June-ish perhaps) and then started having serious issues using about 98%, which causes horrible framerate drops at random points. Framerate drops seem to occur anywhere, under any circumstance, regardless of what is going on around. I drop from 60fps to like 4fps instantly.

GPU: Nvidia Geforce GTX 1070
Driver Version: 398.82
CPU: i7-7820HK CPU @ 2.90GHz
RAM: 16gb
Hard Drive: SSD
OS: Windows 10 Home
OS Version: 17134.167
Graphics Settings: Maximum
FPS Limit: (System Configuration > Display Settings > FPS Limit) 60