

I have had this with some laptops if the charger is faulty. The laptop goes into a limp mode, where the CPU locks to its lowest clock speed.
Since the display is using USB-C it may be triggering the slowness. Some USB-C monitors also deliver power to the connected device.
Is the laptop slow, even when running off battery, or only when running off battery?
Keeping an eye on the CPU frequency with something like Btop can maybe help troubleshoot the issue.



Amen. An Intel 7000 or 1st gen Ryzen CPU will play any modern title surprisingly well.
Its windows 11 thats is the problem.