FPS bump by disabling GameDVR in Windows 10 via registry

[Mustang]

This article may help out a good number of you who might be experiencing sub par performance with VR or even 2D setups

 

https://windowsreport.com/windows-10-version-1903-gaming/?fbclid=IwAR0C2R_1_PVdg-I3pOPfwIWYC88V8WrVUuK1bQTyhtpNP6bw3xHS9WOXb6U

 

"To understand it better, when you run a game in exclusive fullscreen mode, the image goes from the game directly to your screen. After the update, the game is first rendered, then goes through Windows Desktop, and then to the screen.

 

This leads to input lag and performance issues in many games."

 

I have created the required .reg file for those who want to try this out, it has been tried and tested by many people and everyone I have spoke to have seen a rise in performance, especially those with VR.

 

https://drive.google.com/open?id=1baftisLScNUoN01gSOY7Y98OtIq9IVoK

 

simply download this file and double click it and allow it to modify registry then reboot, it will add the entries as seen in the screenshot attached below.

Edited December 15, 2019 by Mustang

[petsild]

It may a lot of users to help, Mustang thanks :thumbup: for sharing.

[bies]

Is it save, i mean doesn't it cause some other issues?

Thanks for posting BTW.

[Mustang]

Is it save, i mean doesn't it cause some other issues?

Thanks for posting BTW.

 

Yes it's safe, no other issues are caused by doing this try it and see.

[TOYKILLA]

Is it a performance benefit, if Game Mode already disabled in System Controls?

 

Gesendet von meinem SM-G973F mit Tapatalk

[Mustang]

Is it a performance benefit, if Game Mode already disabled in System Controls?

 

Gesendet von meinem SM-G973F mit Tapatalk

 

The game mode switch and this registry edit seem to function differently to each other, try it and see.

[Rudel_chw]

Thanks, I tought that my Windows 10 LTSC didnt had that Game Mode, but checked the registry keys and found that it was indeed enabled ... so, I'm giving your tip a try ... will report back if the results were notorious or not.

[104th_Maverick]

Highly recommend this to everyone! Made a huge difference to my performance after setting this up.

[Quadg]

not had a chance to try DCS yet but this has had a noticeable effect in the "the outer worlds".

 

so thanks for the heads up :)

[Rudel_chw]

... will report back if the results were notorious or not.

 

 

 

OK, just had a chance to test and can report that, on 1080p DCS I'm seeing an around a 50% increase on FPS on average, without altering a single graphics setting on my DCS ... so, a really worthwhile tuning.

 

 

I will soon test on VR and complete the report :D

[Ala12Rv-Birdman]

Thanks, I tought that my Windows 10 LTSC didnt had that Game Mode, but checked the registry keys and found that it was indeed enabled ... so, I'm giving your tip a try ... will report back if the results were notorious or not.

 

How do you check in the registry keys if the game mode is active?

Thanks

[toutenglisse]

Hi Mustang! Is there a way to cancel / reset this registry mod ? (Simply for testing purpose or if any trouble)

[Renko]

The WIN10 update is the 1903 or the new 1909 ?

[Lenux]

Hi Mustang! Is there a way to cancel / reset this registry mod ? (Simply for testing purpose or if any trouble)

 

Just make a backup of the registry file, before you apply this one

Off topic question : about 3 - 4 years ago, everytime when I started the simulator, I pressed Alt + Enter, for real full screen

Is that still necessary ?

Thank you

[MegOhm_SD]

The WIN10 update is the 1903 or the new 1909 ?

 

The Windows Report says 1903.

 

Would this have to be redone after all future Windows updates?

Edited December 15, 2019 by MegOhm_SD

[toutenglisse]

Just make a backup of the registry file, before you apply this one ...

 

Thanks Lenux. I just made a screenshot of "GameConfigStore" part of registry, showing actual values to put them back to default when I want.

 

Mod is simply right click on the line / modify value by 0, 1 or 2.

 

Noticed that on my registry there is a line missing, comparing to Mustang's screenshot (GameDVR-FSEBehavior)

[jrasia]

I'm not seeing a performance difference in VR. Running HP reverb.

Full screen more is disabled in DCS video settings.

 

EDIT: If I enable Full Screen in DCS video settings and then press ALT+Enter to make my mirrored VR display full screen, I do see a few FPS increase. Nothing crazy, but every frame helps:)

Nice find.

Edited December 15, 2019 by jrasia

[Chapa]

Windows 10 1909 here but this key is missing: GameDVR_FSEBehaviour, however all other exist. Something has probably changed between 1903 and 1909.

[The Falcon]

Microsoft! :mad:

[Eaglewings]

Odyssey plus here and no noticeable change in fps but it seems to improve fps in dcs 2D screen mode and other games.

[maxTRX]

I'm not seeing a performance difference in VR. Running HP reverb.

Full screen more is disabled in DCS video settings.

 

What's the benefit of running with full screen disabled?

[Bailey]

I'm getting a 4 to 10 FPS increase in DCS.

Hard Spring A10 Instant Mission 2D
NonFullScreen 91-78 
Fullscreen 91-83

After Mod and Reboot
NonFullScreen 96-87
Fullscreen 96-89

I didn't have the GameDVR_FSEBehaviour line in my registry.

I hope others have better results!

~Bailey

[toutenglisse]

I compared performances in VR (VR test : 30s flight strait forward in "TF51D Free Flight Tibilissi")

 

Exact same Fps (62 stable in both cases)

 

The GameDVR-Enabled set to 0 didn't kept the value after rebooting until I unchecked it in Game bar windows setting also.

The missing line (FSEBehavior) I didn't add it, only modifying the lines I have in common.

 

After test I re-opened Regedit to be sure the values were still Mustang's ones. I guess in VR the Mod makes no differences (also seeing other's VR results) probably because VR manages its own fullscreen and Vsync ? ...

[jrasia]

To those with VR when applying this registry edit

 

Make sure to enabled "Full Screen" in your DCS video settings.

Press ALT+Enter to make your mirrored VR display take up the full width of your monitor and not just a windowed display.

 

I'm now seeing about a 3 - 5 FPS increase. I guess because the windows desktop no longer has to be rendered, it frees up some resources.

 

Nice little tweak

 

Question.

Is there a way to always make the mirrored desktop display full screen, instead of having to press ALT+Enter each time in VR?

[Mustang]

The WIN10 update is the 1903 or the new 1909 ?

 

Using 1909 and it works fine.