FPS drops while PC is on CPU and GPU only at 30%

[dunkel]

Game mode: Single-player
Type of issue:Performance
Server type: PvE
Region: germany
Mods?: No
Edition: Steam

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Bug Description:

A clear and concise description of what the bug is.

AT 30 FPS Cap with VSync on:
FPS drops from 30 to 10 while Processor and GPU at only 30%
(no Spikes in CPU GPU Load in Task manager)

AT 60 FPS Cap with VSync on:
FPS drops from 60 to 27 while CPU and GPU at 60%
(also no Spikes in CPU/GPU seen)

Expected Behavior:

Performance before 2.5 Patch. No FPS drops any more. If there is no other solution, i like to be back to the latest patch, there everything was fine.

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Steps to Reproduce:

1. Start the Game
2. Run/Walk a bit
3. Wait for the first stutter/FPS drop

Only way to avoid it - Stand still and dont move
Just 360° Turns can cause FPS drops.

My PC is up to date, Specs:

I5 6600 at 3,3 GHZ
Gigabyte Geforce RTX 3060
16 GB Ram
1 TB Samsung 970 SSD

All other Games run smooth, Horizan Zero Dawn and Contol and Cyberpunk testet - very stable FPS at High to Ultra Settings. So not PC related.

[Coltron]

I’m getting 28 fps fullscreen (slightly worse for windowed/borderless) max on an RTX 2080, and it drops below that a lot.