Gaming Notebooks

I recently let windows upgrade this machine to windows 11, and since that point, my gaming performance has dropped from very good to absolutely horrible. On all games (minecraft, ESO, Fallout) I get frame rates of 5-20 fps. I have verified these with different tools. It's a stuttering, unplayable mess. Amazingly, the performance is terrible no matter how low I set the graphics settings in the games. Minimal comes out just as bad as high quality.

When I was on windows 10, this thing did great at high quality game settings, throwing out 80fps and higher at 1080 resolution. 

To try to address this, I have:

• I have used the Omen command center to make sure the entire laptop is set up to high performance at all times.
• I upgraded to the latest Nvidia GPU drivers.
• I upgraded to the latest AMD CPU and onboard graphics drivers.
• I have applied every windows update available.
• I have set windows graphics settings to choose the Nvidia GPU for the games.
• I have verified via task manager that the games are running on the Nvidia GPU and not the onboard graphics.
• The games are running from high-speed m.2 flash drives.

It's clear that something is throttling gaming performance because the fans don't even spin up like they used to when gaming. (But again, I have verified with the omen command center that everything is set up for performance.)

What's especially frustrating is that I bought my daughter the identical machine, and it has identical upgrades (RAM and an extra m.2 solid state drive) and she upgraded to windows 11 a while back and her machine runs just fine, like 80FPS on high quality graphics settings.

Any ideas?