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[LG Laptop] My PC is slow — LG Help Guide: Causes, Checks & Fixes

Cooling mode is used to reduce wind sounds from the CPU fan by reducing the CPU speed. As a result, the system performance may slow.

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TroubleshootingMonitors

What to Check First

  1. Cooling mode/low noise mode is turned on.
  2. In the Startup Program/App menu, there are unnecessary programs.
  3. There are two or more antivirus programs installed.
  4. Malware is installed or the PC is infected with viruses.
  5. Cooling mode is used to reduce wind sounds from the CPU fan by reducing the CPU speed. As a result, the system performance may slow.
  6. ※ To check the [Cooling Mode/Low Noise Mode] settings, use the LG Smart Assistant app if your laptop was launched after April 2022, and use the LG Control Center app if your laptop was launched before April 2022.
  7. ➔ In LG Smart Assistant, if [Cooling Mode] is set to low noise or no noise, then switch it to [Normal Mode]. (Applicable to models launched after April 2022).
  8. Enter [ LG Smart Assistant] in the task bar search field, and run it. In [ LG Smart Assistant]→ Dashboard]→ [Cooling Mode], switch to [Normal Mode] .
  9. ※ You can press the [Fn] + [F1] hotkeys on the keyboard to run the LG Smart Assistant app as well.
  10. ➔ In LG Control Center, if [Cooling Mode] is set to low noise, then switch it to [Recommended]. (Applicable to models launched before April 2022).

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for [LG Laptop] My PC is slow?

Cooling mode/low noise mode is turned on.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

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Read the Official LG Guide