why is my new 5090 keep dropping to 45fps while flying in VR?

[rocket302]

ok, i had a 4090  with my quest 3 and put that into a different machine. now when i fly with the 5090 over the Mariana islands my FPS will drop and stay around 45. i say mariana since that is what i keep testing with the same flight profile.

i have DLSS  with the latest profile,  on and quality setting.  even if i adjust my graphics setting to VR mode it still happens.

My 4090 did not do that so i'm stumped. 

i chatgpt'd it  and made sure all my navida settings were what the norm was, drivers all updated. at this point i am totally open for suggestions????

when i fly back up high, the FPS goes back to 90 fps.

couple other points:

- quest 3 set at 90 fps too.

- fps slider in DCS set to 90

 

 

Edited 10 hours ago by rocket302

[Qcumber]

4 hours ago, rocket302 said:

ok, i had a 4090  with my quest 3 and put that into a different machine. now when i fly with the 5090 over the Mariana islands my FPS will drop and stay around 45. i say mariana since that is what i keep testing with the same flight profile.

i have DLSS  with the latest profile,  on and quality setting.  even if i adjust my graphics setting to VR mode it still happens.

My 4090 did not do that so i'm stumped. 

i chatgpt'd it  and made sure all my navida settings were what the norm was, drivers all updated. at this point i am totally open for suggestions????

when i fly back up high, the FPS goes back to 90 fps.

couple other points:

- quest 3 set at 90 fps too.

- fps slider in DCS set to 90

 

 

It sounds like reprojection is kicking in. Asynchronous Space Warp. You can disable this on Oculus Debug Tools or use Oculus Tray Tool. Or use the key binds:

Ctrl + Num1: ASW Disabled

Ctrl + Num2: Force 45 fps, no ASW

Ctrl + Num3: Force 45 fps, with ASW

Ctrl + Num4: Auto ASW (default)

[JohnRedcorn]

10 hours ago, rocket302 said:

ok, i had a 4090  with my quest 3 and put that into a different machine. now when i fly with the 5090 over the Mariana islands my FPS will drop and stay around 45. i say mariana since that is what i keep testing with the same flight profile.

i have DLSS  with the latest profile,  on and quality setting.  even if i adjust my graphics setting to VR mode it still happens.

My 4090 did not do that so i'm stumped. 

i chatgpt'd it  and made sure all my navida settings were what the norm was, drivers all updated. at this point i am totally open for suggestions????

when i fly back up high, the FPS goes back to 90 fps.

couple other points:

- quest 3 set at 90 fps too.

- fps slider in DCS set to 90

 

 

It might be just a problem with this speciffic map. A lot of user has complained about the performance on this speciffic map, even it almost water only. So it may also depends on hardware and it might also be that 4090 handled it better than 5090 because of the problems of this speciffic map.