Manipulators increase in latency and FPS decrease at High Altitudes

Have you disabled/removed all your mods and add-ons?

No

Are you using Developer Mode or made changes in it?

Yes

Are you using DX11 or DX12?

DX12

Are you using DLSS?

No

Brief description of the issue:

Performance in good in altirudes below FL330, and performance is really bad above FL340

Provide Screenshot(s)/video(s) of the issue encountered:

FPS around 20FPS FL350 (limited by MainThread)

Three minutes after, descending FL330, FPS increase to around 35FPS (limited by MainThread)

Detailed steps to reproduce the issue encountered:

  1. Use PMDG 737 any variation
  2. Climb to FL350 or above
  3. Check performance FPS in DEV MODE, and check changes while climbing; passing FL340 performance drops instantly to around 20FPS

PC specs and peripheral set up:

CPU: AMD 5800X
GPU: AMD 6950XT 16GB
RAM: T-FORCE 16GB 3600MHz CL14
SCREEN: MSI G281UV 4K
FLIGHT SIMULATOR HARDWARE: ALL DISCONNECTED

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