Low fps on the air and recover when landed immediately

User Support Hub Hardware & Peripherals
1

Are you using Developer Mode or made changes in it?

n

Brief description of the issue:

  1. when i’m on the ground i can get 30-40 fps
  1. if i’m in the air, the fps drops to 6-9 fps.

3. But it will recover to 30-40 fps immeditely when i touch the ground.

  1. I’m using PMDG 737 for 2020
  1. If i “born” in the air and try to land at airport, the fps is normal at 36 fps
  1. It doesn’t matter if it’s external view or cockpit view, 6-10 fps in the after taking off
  1. The developer mode show limited by MainThread and it takes 90ms to finish 1 fps by CPU, and 23ms by GPU

8. After taking off, if i maintain a low altitude, the fps stays normal. However if I pass 800 feets. it become 10 fps immediately, and only recover as long as i land.

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

Detailed steps to reproduce the issue encountered:

i’m flying around ZBAA

PC specs and/or peripheral set up if relevant:

i7-7700 GTX1070 32G RAM

2

Reset your system HPET settings back to default if you have changed them.

3

Moved to #self-service:install-performance-graphics which is more appropriate :+1:

4

Is there anyone focused on “If i directly born in the air, the fps is normal”?
I think it’s the key, but i have no idea where iis wrong

5

I found another thing . If i take off and maintain a low altitude, the fps stay normal
However if pass 800 feets. it become 10 fps immediately, and only recover as long as i land.
Is there any clue?

6

Delete mapscache and overrides.json

If the problem continues then enable developer mode fps graphs and capture some screenshots next time it happens.

7

Sounds like terrain distance slider is up to high? I have mine all the way down…

8

in local files shall I just deleted?
mapscache… whole DIR?