On HP Pavilion Laptop 15-eg3xxx the World of Tanks lagging randomly when it is plugged in but not on

[BL9]

Hi There,

There is a HP preinstalled Windows 11 on my HP Pavilion 15-eg30000.

Only the "Balanced" classic power plan exists in Windows 11 (powercfg.cpl)-

All drivers and firmwares are up to date by HP Support Assistant.

The latest Intel driver is installed (32.0.101.6913) and it detects and applies Intel WoT profile.

It is strange, that World of Tanks runs smoothly on battery with 30-40 fps, but lagging when the notebook is plugged in, somtimes the CPU is utilized by 100%.

Changing the Windows 11 Power Management mode (in modern settings) to “Best performance” does not help.

As far as I see there is no way to fine tune the power plan of the GPU (Intel Iris Xe) nor the other devices in any power utilities on Windows 11.

Anyone have any solutions for this?

Thank you in advance.

[Hawks_Eye · Accepted solution]

Hi @BL9 

Welcome to the HP Support Community! We're here to help you get back up and running.

Thanks for laying that out so clearly—it’s definitely puzzling when performance drops while plugged in, especially when you'd expect the opposite. 

Let’s try a few steps to help smooth things out and give your Pavilion the boost it deserves:

⚙️ Step 1: Enable High Performance Power Plan (Manually)

Windows 11 often hides additional power plans due to Modern Standby (S0) mode. You can restore them like this:

1. Open Command Prompt as Administrator.
2. Run this command to re-enable the High Performance plan:
   powercfg -duplicatescheme 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c
3. Then go to Control Panel > Power Options and select High Performance.

If it doesn’t appear, you may need to disable Modern Standby via Registry (I can guide you through that if needed).

🔄 Step 2: Update Intel Dynamic Tuning & MEI Drivers

These drivers help manage CPU and GPU behavior under different power states:

• Visit the HP Pavilion 15-eg3000 support page.
• Download and install:
  • Intel Dynamic Tuning Driver
  • Intel Management Engine Interface (MEI)
  • Intel Chipset Driver

Restart your laptop after installation.

🧠 Step 3: Adjust Intel Graphics Settings

• Open Intel Graphics Command Center.
• Go to System > Power.
• Set Plugged In profile to Maximum Performance.
• Disable any adaptive or power-saving features under Display > Power.

🧪 Step 4: Monitor CPU Behavior

• Open Task Manager while plugged in.
• Check which processes spike CPU usage—sometimes background services behave differently on AC power.
• You can also use HP Performance Tune-Up Check from the Support Assistant to scan for system bottlenecks.

🧼 Step 5: Clean Boot (Optional)

To rule out third-party interference:

1. Press Windows + R, type msconfig, and hit Enter.
2. Under Services, check Hide all Microsoft services, then click Disable all.
3. Go to Startup tab > Open Task Manager > Disable all startup items.
4. Restart and test game performance.

You’ve clearly done your homework, and it’s awesome to see how much care you’re putting into optimizing your setup. 

Let me know how these steps go—we’ll keep digging until your plugged-in performance matches your expectations!

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye

[BL9]

Hi Hawks_Eye,

Thanks for the suggestion, just disabling modern standby mode (S0) solved the problem, no other changes were needed.

reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0

[Hawks_Eye]

@BL9 

That’s a great outcome—and a clever fix! 

Disabling Modern Standby (S0) can definitely help stabilize performance, especially in gaming scenarios where power management quirks cause unexpected CPU spikes or throttling when plugged in.

You're awesome, and I'm honored to have been your go-to guide today! 😊

Stay fantastic, and have an amazing day ahead! 

Regards, 

Hawks_Eye

[BL9]

Hi,

Unfortunately, I was not very careful when testing.
I tested your suggested solution when the notebook was connected to my company USB-C dock (with 65W power adapter). The WoT lagging problem appeared again without the USB-C dock and using the original 45W power adapter.
It turned out, that the original HP 45W power adapter was causing the problem, because it disappeared when using the 45W power adapter of my company HP notebook even in S0 modern standby mode.
I think the original adapter cannot provide the desired power.
Time to arrange the warranty and change the power adapter.

Thanks and regards