Severe Groupy 2 Bug: Foreground Game Performance Drops from 200+ FPS to 20–30 FPS

I am reporting a severe compatibility issue caused by Groupy 2.

Title

 

Severe Groupy 2 Bug: Foreground Game Performance Drops from 200+ FPS to 20–30 FPS

 

Post

 

I am reporting a severe compatibility issue caused by Groupy 2.

 

When the Stardock Groupy service is running, VALORANT drops from more than 200 FPS to approximately 20–30 FPS whenever the game window has foreground focus. At the same time, GPU utilization becomes abnormally low.

 

The behavior is immediately reversible:

 

Game window focused: 20–30 FPS, low GPU utilization

 

Click outside the game window: 200+ FPS, normal GPU utilization

 

Click back into the game: FPS immediately drops to 20–30 again

 

 

The problem occurs consistently in fullscreen, borderless fullscreen, and windowed modes. I also tested resolutions ranging from 1024×768 to 2880×1920, with virtually no change in frame rate. This clearly rules out resolution, graphics settings, or insufficient hardware performance.

 

I spent an entire day troubleshooting this issue, including:

 

Graphics drivers

 

Windows graphics settings

 

Power and performance modes

 

Game settings

 

Hardware utilization

 

Background services

 

Other installed software

 

 

After isolating the services through a clean boot, I confirmed that disabling only the Stardock Groupy service immediately restores normal foreground performance above 200 FPS.

 

I then added:

 

VALORANT-Win64-Shipping.exe

 

to Groupy’s blocked application list. This also resolved the problem while allowing Groupy to remain enabled.

 

This confirms that Groupy’s interaction with the game window, foreground focus, or rendering process is directly responsible for the performance loss.

 

This is not a minor compatibility issue or normal software overhead. Groupy reduced foreground performance by nearly 90%, without any warning or indication that it was interfering with another application. Because Groupy is paid software, this level of interference is unacceptable. I purchased it to improve productivity in applications such as Microsoft Word, not to silently cripple unrelated programs and cause an entire day of unnecessary hardware and driver troubleshooting.

 

The blocked-application rule is currently a workaround, but it is not a proper fix. Users should not have to discover severe performance degradation first and then manually exclude every affected application.

 

Please investigate:

 

1. Why Groupy interferes with foreground rendering and GPU utilization.

 

 

2. Whether Groupy continues to hook or monitor applications that should not be grouped.

 

 

3. Why full-screen and GPU-accelerated applications are not excluded automatically.

 

 

4. Whether blocked applications are completely isolated from all Groupy window and focus handling.

 

 

 

Please reproduce and properly address this issue in a future update, and document the fix clearly in the changelog.

1,390 views 9 replies
Reply #1 Top

This is absolutely outrageous.

Groupy silently reduced my game performance from over 200 FPS to 20–30 FPS and made me waste an entire day checking my hardware, graphics drivers, Windows settings, power settings, and game configuration.

There was no warning, no error message, and no indication whatsoever that Groupy was destroying foreground performance. The moment I disabled the Groupy service, the problem disappeared. Adding the game executable to Groupy’s blocked application list also immediately fixed it.

This is not a minor compatibility issue. It is a serious defect in paid software. A window-management utility has no business interfering with GPU utilization and reducing another application’s performance by nearly 90%.

Customers should not be expected to spend an entire day diagnosing damage caused by software they paid for. Manually blocking every affected application is not a proper solution. Stardock needs to identify the cause and fix this bug properly.

Reply #2 Top

Hello,

Sorry to hear you are having issues. I have forwarded your problem/question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience. Thank you.

Basj,

Stardock Community  Assistant

 

 

Basj,

Stardock Community  Assistant.

Reply #3 Top

Hello, 

Thank you for the detailed report, and sorry for the lost time and frustration— spending a full day isolating drivers, Windows settings, and hardware only to trace it back to Groupy is exactly the kind of experience we don't want you to have.

Please know your report/diagnosis is helpful.  The behavior you've described has been forwarded to our team for investigation, and the details you provided (consistent across fullscreen, borderless, and windowed modes, and independent of resolution) should help. 

The workaround you've identified is the correct one and can stay in place safely.  I'll make sure to update our support documentation to help others with adding any problematic game's executable to Groupy's block list. 

For anyone else reading, in Groupy 2, this is done under Groupy > Grouping rules > Block / allow applications.  In the original Groupy, it would be Settings -> Application exclusions...   

This section of the app can be used to stop Groupy 1/2 from hooking the listed application entirely, or an option can be checked here to treat this as an inclusion list.

If you happen to notice the same drop with any other titles, please do let us know, as that information could also help us pin down potential causes and revise our documentation. 

Best regards,

Adam McGuinness
Stardock Support Specialist

Reply #4 Top

I would like to report that this behavior is also happening with the following games:

- League of Legends

- Guild Wars 2

Furthermore, testing I have done have shown this behavior to be tied to mouse movement

Recorded here: https://streamable.com/x6sgz9

I found no native option to upload to the forum so I used streamable, althought the link may expire, unsure of their policies. Some further details on my system:

- 4080 Super, Ryzen 7 7800x3d (mouse movement should not be a performance hit)

- Mouse polling rate set to 1000 Hz, no high polling issues or concerns

- G-Sync enabled and locked to 224 FPS (monitor refresh to 240 Hz)

- Two monitors, grouped windows are on the second

Most importantly, the performance drops are random which may make this hard to reproduce, sometimes they don't happen at all, other days it happens non-stop... for me it appears to happen every time I boot up the computer, and goes away after I have frustratedly restarted too many times for it to not happen, or it goes away on it's own 30+ minutes after boot.

 

 

Reply #5 Top

To be clear and as shown in the video, the clear smoking gun here is Groupy, just mentioning this for then the link expires... any way to share the video directly here?

Reply #6 Top
Quoting polariswho, reply 3996316

I would like to report that this behavior is also happening with the following games:

- League of Legends

- Guild Wars 2

Furthermore, testing I have done have shown this behavior to be tied to mouse movement

Recorded here: https://streamable.com/x6sgz9

I found no native option to upload to the forum so I used streamable, althought the link may expire, unsure of their policies. Some further details on my system:

- 4080 Super, Ryzen 7 7800x3d (mouse movement should not be a performance hit)

- Mouse polling rate set to 1000 Hz, no high polling issues or concerns

- G-Sync enabled and locked to 224 FPS (monitor refresh to 240 Hz)

- Two monitors, grouped windows are on the second

Most importantly, the performance drops are random which may make this hard to reproduce, sometimes they don't happen at all, other days it happens non-stop... for me it appears to happen every time I boot up the computer, and goes away after I have frustratedly restarted too many times for it to not happen, or it goes away on it's own 30+ minutes after boot.

End of polariswho's quote
Quoting polariswho, reply 3996319

To be clear and as shown in the video, the clear smoking gun here is Groupy, just mentioning this for then the link expires... any way to share the video directly here?

End of polariswho's quote

Hello,

Sorry to hear you are having issues. Have you tried to exclude those applications/games from Groupy? As mentioned by Adam in his respond above?

Thank you,

Basj,

Stardock Community  Assistant.

Reply #7 Top

Hi @basj, yes, exclusion and disabling works, however it is not a permanent solution so I am just sharing my bug report and findings with you all, hoping for a future fix.

I would also like to note that exclusion is not a permanent solution for me as there are times where I can observe this behavior on the system itself, not in game. It's not always, but I was able to reproduce this performance drop on work apps such as Slack (which I always have grouped, possibly due to hardware acceleration?), Discord, Firefox, etc.

I believe this is affecting performance on every program, but that it's simply more noticeable on games since a. you move the mouse a lot more and b. it's easier to observe performance drops if you are measuring framerate. On my system, it is very noticeable on any app that takes any sort of real-time measurement on the system, such as Task Manager, LatencyMon, and HWiNFO, since they are very dependant on timings.

Interestingly, it doesn't seem to happen in OpenGL apps at all, but I think it can be seen on any app that uses DirectX.

Today I stumbled on this thread which finally pointed me into the right direction after playing around with multiple Windows/driver/mouse settings.

Reply #8 Top

We will investigate this as it isn't intentional behaviour.

Reply #9 Top
The truth is, you have no idea how much time I spent troubleshooting to confirm this issue stems from your software. I spent an entire day ruling out potential causes one by one with assistance from ChatGPT and Codex. This experience has left me with profound distrust in the program. I believe it severely hampers computer performance, especially when running large-scale applications, which is why I have now uninstalled it entirely.Countless novice users would only suspect hardware faults on their computers when they have no clue where the root problem lies, and they would waste untold hours hunting down the error. We still cannot confirm which other programs this software will interfere with. As such, merely providing an option to disable it is not an entirely acceptable solution.