Use powercfg to determine what power plan the laptop is using.
FYI:
https://www.makeuseof.com/powercfg-commands-windows-10/
Read the entire link first. Feel free to look for similar links and information. Do avoid downloading any third party tools or utilities.
Start with powercfg /list via Powershell:
From my computer with Powershell as Admin - bold text.
Windows PowerShell
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PS C:\WINDOWS\system32> powercfg /list
Existing Power Schemes (* Active)
-----------------------------------
Power Scheme GUID: 381b4222-f694-41f0-9685-ff5bb260df2e (Balanced)
Power Scheme GUID: 49ef8fc0-bb7f-488e-b6a0-f1fc77ec649b (Dell)
Power Scheme GUID: 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c (High performance) *
Power Scheme GUID: a1841308-3541-4fab-bc81-f71556f20b4a (Power saver)
PS C:\WINDOWS\system32>
What does Powershell report?