I have a laptop that often lags/stutters when doing "normal" tasks that are not intensive:

  • Firefox with Youtube
  • Microsoft Teams make my computer lag with the Desktop App and even when using the App interface with Google Chrome)

Here is my GPU usagemy GPU usage

We can see that 3 apps take roughly 80% of one GPU ("System", Firefox, and "Windows Driver Foundation - Host process..." each take between 20% and 30% of my GPU 0)

Another weird thing is that my second GPU is not used, it stays at 0% even when launching games.

Here are my specs:

  • CPU: Intel Core i5-8265U @1.6GHz (4 cores / 8 virtual processors?)
  • RAM: 24 GB
  • GPU 0: Intel UHD Graphics 620
  • GPU 1: NVIDIA GeForce MX250

What can I do to further troubleshoot my issue? How can I use both my GPU?

  • 1
    I believe Windows uses Integrated Graphics (GPU0) for hardware acceleration, but 20-30% usage is a bit higher. I have the exact same specs (except for RAM) and my GPU usage is only about 2-3%. It does spike when switching between windows and performing other similar tasks.
    – Mayank
    Jul 23 at 8:56
  • 1
    Another weird thing is that my second GPU is not used, it stays at 0% even when launching games. Have you installed driver from NVIDIA? (Not sure if you need to do anything else to enable Optimus...)
    – Tom Yan
    Jul 26 at 9:20
  • Yup, just installed the driver, switched the settings in the NVidia control panel to always use my MX250 GPU, but did not change anything, games like Skyrim still lag Jul 26 at 13:22
  • "System" shouldn't use that much GPU. I suggest running several deep antivirus scans by well-known antivirus products. Follow also the advice in the post Troubleshoot High CPU usage by the “System” process. Let us know what you find.
    – harrymc
    Jul 26 at 13:41
  • @TomYan I think installing/updating the NVIDIA driver solved my issue, you can post an answer, I'll accept it. Jul 29 at 9:13

It seems that the second GPU wasn't configured correctly, so it is detected, but doesn't get used by your applications. I found a solution that you could try: use Nvidia GPU instead of integrated intel card

If Firefox uses too many resources, check your extensions or reinstall Firefox.

To the resourceful “System” process: do a right click on it and check the location of the binary. Bitcoin miner often use the GPU, so it might be one of these. Also, you can use Microsoft's Malicious Software Remover Tool to check your PC.

At the end, if nothing works, check your drivers. I'm recommending IOBit Driver Booster for this. If all your drivers work, backup your data and reset your PC. This helps in most Software related problems.

  • Thanks for your detailed answer, I think it was a driver issue. Jul 29 at 9:13

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